core: fix cpu profile validation on import template

The cluster setting was missing on the template, thus we'll use the
destination cluster.

Change-Id: I5530101a10811f1fa4a4592d369c5bd93285bfc2
Bug-Url: https://bugzilla.redhat.com/1084930
Signed-off-by: Arik Hadas <ahadas@redhat.com>