Key Vault - Administration Sample issue

[v-hongli1]

Section Link:

Reason:
1. KeyVaultAccessControlClient(com.azure.security.keyvault.administration.KeyVaultAccessControlAsyncClient) is not public in com.azure.security.keyvault.administration.KeyVaultAccessControlClient. Cannot be accessed from outside package
2. KeyVaultBackupClient(com.azure.security.keyvault.administration.KeyVaultBackupAsyncClient) is not public in com.azure.security.keyvault.administration.KeyVaultBackupClient. Cannot be accessed from outside package

Suggestion:

1. Change to

new KeyVaultAccessControlClientBuilder()
	     .vaultUrl("<your-key-vault-url>")
	     .credential(new DefaultAzureCredentialBuilder().build())
	     .buildClient();

2. Change to

new KeyVaultBackupClientBuilder()
	     .vaultUrl("<your-key-vault-url>")
	     .credential(new DefaultAzureCredentialBuilder().build())
             .buildClient(); 

@scottaddie, @joshfree, @lilyjma, @AlexGhiondea, @backwind1233 for notification.