packaging: setup: set emulatedMachine

set emulatedMachine to rhel-6.5.0 on RHEL
and to pc for other distros in vm.conf.

Change-Id: Id4bf19abf9c2a11d7335a60765a74e666174f6c2
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>