users: fixup LDAP_BIND_PASSWORD

LDAP_BIND_PASSWORD was accidently removed in previous commit

Partial: owncloud#7176

services/users/pkg/config/config.go

@@ -67,7 +67,7 @@ type LDAPDriver struct {
 	CACert                   string          `yaml:"ca_cert" env:"OCIS_LDAP_CACERT;USERS_LDAP_CACERT" desc:"Path/File name for the root CA certificate (in PEM format) used to validate TLS server certificates of the LDAP service. If not defined, the root directory derives from $OCIS_BASE_DATA_PATH:/idm."`
 	Insecure                 bool            `yaml:"insecure" env:"OCIS_LDAP_INSECURE;USERS_LDAP_INSECURE" desc:"Disable TLS certificate validation for the LDAP connections. Do not set this in production environments."`
 	BindDN                   string          `yaml:"bind_dn" env:"OCIS_LDAP_BIND_DN;USERS_LDAP_BIND_DN" desc:"LDAP DN to use for simple bind authentication with the target LDAP server."`
-	BindPassword             string          `yaml:"bind_password" env:"OCIS_LDAP_BIND_PASSWORD;USERS_LDAP_BIND_PASSWORD" desc:"Password to use for authenticating the 'bind_dn'." deprecationVersion:"4.0.2" removalVersion:"5.0.0" deprecationInfo:"LDAP_BIND_PASSWORD changing name for consistency" deprecationReplacement:"OCIS_LDAP_BIND_PASSWORD"`
+	BindPassword             string          `yaml:"bind_password" env:"OCIS_LDAP_BIND_PASSWORD;LDAP_BIND_PASSWORD;USERS_LDAP_BIND_PASSWORD" desc:"Password to use for authenticating the 'bind_dn'." deprecationVersion:"4.0.2" removalVersion:"5.0.0" deprecationInfo:"LDAP_BIND_PASSWORD changing name for consistency" deprecationReplacement:"OCIS_LDAP_BIND_PASSWORD"`
 	UserBaseDN               string          `yaml:"user_base_dn" env:"OCIS_LDAP_USER_BASE_DN;USERS_LDAP_USER_BASE_DN" desc:"Search base DN for looking up LDAP users."`
 	GroupBaseDN              string          `yaml:"group_base_dn" env:"OCIS_LDAP_GROUP_BASE_DN;USERS_LDAP_GROUP_BASE_DN" desc:"Search base DN for looking up LDAP groups."`
 	UserScope                string          `yaml:"user_scope" env:"OCIS_LDAP_USER_SCOPE;USERS_LDAP_USER_SCOPE" desc:"LDAP search scope to use when looking up users. Supported values are 'base', 'one' and 'sub'."`