Examples fix for cellular LENA-R8: include line endings in PEM certif…

…icates. (#1171)

The cellular LENA-R8 module requires line-endings in PEM-format files, the only cellular module to require this.  The certificate arrays used by the secure sockets examples did not include line endings and hence would fail.  This wasn't noticed because the original LENA-R8 FW version (likely the engineering sample version) used when the examples were first run did not have this requirement and, in the case of the examples, we only write the certificate files if the hash doesn't match, since that is the best usage pattern; this is not a hole in testing because the security credentials tests _do_ test writing the certificate files and the test certificates files used there _do_ include line endings in the PEM-format files, so all is good.

Our thanks to mos216 for highlighting this.

example/sockets/credentials_tls.c

@@ -46,20 +46,20 @@
 /** A client certificate, generated for use with the uxblib echo
  * server.
  */
-const char *gpUEchoServerClientCertPem = "-----BEGIN CERTIFICATE-----"
- "MIICSjCCAdACFD+js1Fht6STx4lF3zGisrnThT4iMAoGCCqGSM49BAMDMIGFMQsw"
- "CQYDVQQGEwJVUzELMAkGA1UECAwCV0ExEDAOBgNVBAcMB1RoYWx3aWwxDzANBgNV"
- "BAoMBnUtYmxveDELMAkGA1UECwwCY2ExFzAVBgNVBAMMDnd3dy51LWJsb3guY29t"
- "MSAwHgYJKoZIhvcNAQkBFhF1YnhsaWJAdS1ibG94LmNvbTAgFw0yMzA3MDkwODI3"
- "NDBaGA8yMTIzMDYxNTA4Mjc0MFowgYkxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJX"
- "QTEQMA4GA1UEBwwHVGhhbHdpbDEPMA0GA1UECgwGdS1ibG94MQ8wDQYDVQQLDAZj"
- "bGllbnQxFzAVBgNVBAMMDnd3dy51LWJsb3guY29tMSAwHgYJKoZIhvcNAQkBFhF1"
- "YnhsaWJAdS1ibG94LmNvbTB2MBAGByqGSM49AgEGBSuBBAAiA2IABApmNYLlR8Cr"
- "S9MAocQX+bUU4+1EkmT61bchs6pf9RVvvbgbLkw2gk/So8vPifo6imJcjWteiIBy"
- "xYKKFSIyghz/o0hjmpDz1XoYPtGENrz/dyISP35ZFk9sRJZ4pSX1uDAKBggqhkjO"
- "PQQDAwNoADBlAjEA3scFsQb9Aj+lzC34h+AS6RGHLHr81Txm713MHnXjrpe0jEk8"
- "bTULtydY8Jyf9c+DAjBMEdAEODaOp5Vn02ZOkKtbm91R6rFS1IZTFJ2MQCALG50C"
- "GHviROz1O6YfRcRFTks="
+const char *gpUEchoServerClientCertPem = "-----BEGIN CERTIFICATE-----\n"
+ "MIICSjCCAdACFD+js1Fht6STx4lF3zGisrnThT4iMAoGCCqGSM49BAMDMIGFMQsw\n"
+ "CQYDVQQGEwJVUzELMAkGA1UECAwCV0ExEDAOBgNVBAcMB1RoYWx3aWwxDzANBgNV\n"
+ "BAoMBnUtYmxveDELMAkGA1UECwwCY2ExFzAVBgNVBAMMDnd3dy51LWJsb3guY29t\n"
+ "MSAwHgYJKoZIhvcNAQkBFhF1YnhsaWJAdS1ibG94LmNvbTAgFw0yMzA3MDkwODI3\n"
+ "NDBaGA8yMTIzMDYxNTA4Mjc0MFowgYkxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJX\n"
+ "QTEQMA4GA1UEBwwHVGhhbHdpbDEPMA0GA1UECgwGdS1ibG94MQ8wDQYDVQQLDAZj\n"
+ "bGllbnQxFzAVBgNVBAMMDnd3dy51LWJsb3guY29tMSAwHgYJKoZIhvcNAQkBFhF1\n"
+ "YnhsaWJAdS1ibG94LmNvbTB2MBAGByqGSM49AgEGBSuBBAAiA2IABApmNYLlR8Cr\n"
+ "S9MAocQX+bUU4+1EkmT61bchs6pf9RVvvbgbLkw2gk/So8vPifo6imJcjWteiIBy\n"
+ "xYKKFSIyghz/o0hjmpDz1XoYPtGENrz/dyISP35ZFk9sRJZ4pSX1uDAKBggqhkjO\n"
+ "PQQDAwNoADBlAjEA3scFsQb9Aj+lzC34h+AS6RGHLHr81Txm713MHnXjrpe0jEk8\n"
+ "bTULtydY8Jyf9c+DAjBMEdAEODaOp5Vn02ZOkKtbm91R6rFS1IZTFJ2MQCALG50C\n"
+ "GHviROz1O6YfRcRFTks=\n"
  "-----END CERTIFICATE-----";
 
 /** The hash of gpUEchoServerClientCertPem once stored on the module.
@@ -70,11 +70,11 @@ const char gUEchoServerClientCertHash[] = {0x33, 0x5f, 0x89, 0x2f, 0x59, 0x84, 0
 
 /** The private key to go with uEchoServerClientCertPem.
  */
-const char *gpUEchoServerClientKeyPem = "-----BEGIN EC PRIVATE KEY-----"
- "MIGkAgEBBDBxQnFRM8oo6gCjmfNNgTdfUQreohEDs1NFIOq84DO3120rKI4Ypf7h"
- "xog10lSfhhOgBwYFK4EEACKhZANiAAQKZjWC5UfAq0vTAKHEF/m1FOPtRJJk+tW3"
- "IbOqX/UVb724Gy5MNoJP0qPLz4n6OopiXI1rXoiAcsWCihUiMoIc/6NIY5qQ89V6"
- "GD7RhDa8/3ciEj9+WRZPbESWeKUl9bg="
+const char *gpUEchoServerClientKeyPem = "-----BEGIN EC PRIVATE KEY-----\n"
+ "MIGkAgEBBDBxQnFRM8oo6gCjmfNNgTdfUQreohEDs1NFIOq84DO3120rKI4Ypf7h\n"
+ "xog10lSfhhOgBwYFK4EEACKhZANiAAQKZjWC5UfAq0vTAKHEF/m1FOPtRJJk+tW3\n"
+ "IbOqX/UVb724Gy5MNoJP0qPLz4n6OopiXI1rXoiAcsWCihUiMoIc/6NIY5qQ89V6\n"
+ "GD7RhDa8/3ciEj9+WRZPbESWeKUl9bg=\n"
  "-----END EC PRIVATE KEY-----";
 
 /** The hash of gpUEchoServerClientKeyPem once stored on the module.
@@ -85,22 +85,22 @@ const char gUEchoServerClientKeyHash[] = {0x8f, 0xe6, 0xdd, 0xdb, 0x64, 0xb8, 0x
 
 /** The CA certificate for the ubxlib echo server and the client.
  */
-const char *gpUEchoServerCaCertPem = "-----BEGIN CERTIFICATE-----"
- "MIICoTCCAiagAwIBAgIUXW8iJeCsbA3ygmXIT3wqxqtZla4wCgYIKoZIzj0EAwIw"
- "gYUxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJXQTEQMA4GA1UEBwwHVGhhbHdpbDEP"
- "MA0GA1UECgwGdS1ibG94MQswCQYDVQQLDAJjYTEXMBUGA1UEAwwOd3d3LnUtYmxv"
- "eC5jb20xIDAeBgkqhkiG9w0BCQEWEXVieGxpYkB1LWJsb3guY29tMCAXDTIzMDcw"
- "OTA4MjY1NloYDzIxMjMwNjE1MDgyNjU2WjCBhTELMAkGA1UEBhMCVVMxCzAJBgNV"
- "BAgMAldBMRAwDgYDVQQHDAdUaGFsd2lsMQ8wDQYDVQQKDAZ1LWJsb3gxCzAJBgNV"
- "BAsMAmNhMRcwFQYDVQQDDA53d3cudS1ibG94LmNvbTEgMB4GCSqGSIb3DQEJARYR"
- "dWJ4bGliQHUtYmxveC5jb20wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAAS5br7n7+wi"
- "Mwp5h3BojVn+cH4oZN7ngyfadR961TJZsu/g2arYE8SJTVI+qzQC4KiBb+rTXQIY"
- "k9sxEo+mTyJ4BWaVxoWOXjvALNRtyrbls6q36ttXoYsU5UAgNWJiH/ejUzBRMB0G"
- "A1UdDgQWBBRKetSAT3SQ45r2l64eXK1vf8sTzDAfBgNVHSMEGDAWgBRKetSAT3SQ"
- "45r2l64eXK1vf8sTzDAPBgNVHRMBAf8EBTADAQH/MAoGCCqGSM49BAMCA2kAMGYC"
- "MQD7WrRzaAxBikIHPuoDZo7tAdA5Zsbg9axBPS+wm3mdKLGwWjdep2IWLmn/uuFE"
- "VlwCMQDXxDnOuuc6p1nzmtrn9JHVE0/+HdeDj6KdnDWWtZJQsagHDAEmld8oEDlg"
- "iDO9Bnw="
+const char *gpUEchoServerCaCertPem = "-----BEGIN CERTIFICATE-----\n"
+ "MIICoTCCAiagAwIBAgIUXW8iJeCsbA3ygmXIT3wqxqtZla4wCgYIKoZIzj0EAwIw\n"
+ "gYUxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJXQTEQMA4GA1UEBwwHVGhhbHdpbDEP\n"
+ "MA0GA1UECgwGdS1ibG94MQswCQYDVQQLDAJjYTEXMBUGA1UEAwwOd3d3LnUtYmxv\n"
+ "eC5jb20xIDAeBgkqhkiG9w0BCQEWEXVieGxpYkB1LWJsb3guY29tMCAXDTIzMDcw\n"
+ "OTA4MjY1NloYDzIxMjMwNjE1MDgyNjU2WjCBhTELMAkGA1UEBhMCVVMxCzAJBgNV\n"
+ "BAgMAldBMRAwDgYDVQQHDAdUaGFsd2lsMQ8wDQYDVQQKDAZ1LWJsb3gxCzAJBgNV\n"
+ "BAsMAmNhMRcwFQYDVQQDDA53d3cudS1ibG94LmNvbTEgMB4GCSqGSIb3DQEJARYR\n"
+ "dWJ4bGliQHUtYmxveC5jb20wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAAS5br7n7+wi\n"
+ "Mwp5h3BojVn+cH4oZN7ngyfadR961TJZsu/g2arYE8SJTVI+qzQC4KiBb+rTXQIY\n"
+ "k9sxEo+mTyJ4BWaVxoWOXjvALNRtyrbls6q36ttXoYsU5UAgNWJiH/ejUzBRMB0G\n"
+ "A1UdDgQWBBRKetSAT3SQ45r2l64eXK1vf8sTzDAfBgNVHSMEGDAWgBRKetSAT3SQ\n"
+ "45r2l64eXK1vf8sTzDAPBgNVHRMBAf8EBTADAQH/MAoGCCqGSM49BAMCA2kAMGYC\n"
+ "MQD7WrRzaAxBikIHPuoDZo7tAdA5Zsbg9axBPS+wm3mdKLGwWjdep2IWLmn/uuFE\n"
+ "VlwCMQDXxDnOuuc6p1nzmtrn9JHVE0/+HdeDj6KdnDWWtZJQsagHDAEmld8oEDlg\n"
+ "iDO9Bnw=\n"
  "-----END CERTIFICATE-----";
 
 /** The hash of gpUEchoServerCaCertPem once stored on the module.