packaging: setup: checking required vCPU number against available cores
packaging: setup: checking required vCPU number against available cores

Checking the number of required vCPU against the number of available
cores to prevent further failures.

Change-Id: Id15778a7c3234221260bc8cea10997bf5e1595ed
Bug-Url: https://bugzilla.redhat.com/1198581
Signed-off-by: Simone Tiraboschi <cb03129c66ba4da7ba7044049d0f43907bf857bb@redhat.com>

oVirt/ovirt-hosted-engine-setup,oVirt/ovirt-hosted-engine-setup