The jboss.dist system property is not used in testsuite/elytron module

Elytron testsuite module doesn't work correctly with the jboss.dist system property.

The jboss.dist system property is used by QE to run the AS testsuite against the correct bits (e.g. comming from PROD team). The testsuite/integration/elytron module seems not to be taking this property into account. It seems it always uses output of wildfly-server-provisioning-maven-plugin to test against.