core: AddVmCommand - add all SDs to permList

Adding all target storage domains specified in the
parameters to permList (instead of getStorageDomainId()
which returns an empty guid since MSD).

Change-Id: I7b942af8b5093848922f060c6be44e8a69374634
Bug-Url: https://bugzilla.redhat.com/928399
Signed-off-by: Daniel Erez <derez@redhat.com>