radius: Add support for setting the "NAS-Identifier" attribute.
radius: Add support for setting the "NAS-Identifier" attribute.

Thanks to Stefan Winter for implementing this!

sgomez/saml2,newmen/saml2,ArtemTeleshev/php-saml2,madmatt/saml2,cb8/saml2,sitya/saml2,simplesamlphp/saml2