Load the VMT using the indirect symbol if the target supports packages.

ncgmem.pas, tcgloadvmtaddrnode:
  * pass_generate_code: if tf_supports_packages is set in target_info.flags we load the VMT using the indirect symbol, otherwise we load it using the direct symbol


git-svn-id: http://svn.freepascal.org/svn/fpc/branches/svenbarth@28350 3ad0048d-3df7-0310-abae-a5850022a9f2