Do not use hardcoded name to point to the provisioned server dist module

'jboss.actual.dist' is used in XSDValidationUnitTestCase and currently under dist module, it is using a hardcoded name to point to the provisioned server used in the test.

We should use a non-hardcoded name there to facilitate the transition to product branches, for example:
target/${server.output.dir.prefix}-${server.output.dir.version}
or
${basedir}/target/${project.build.finalName}