Adding RHEV to visible compute resources

In satellite ovirt provider is named RHEV

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1134384
Change-Id: I1376e595a3f5030fbef7c7f3e185f8e1eda6d264
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>