Remove vme and ssse3 from gate64 cpu mapping
Remove vme and ssse3 from gate64 cpu mapping

It turns out that we need to be even more restrictive on the cpu flags
we expose as some clouds don't expose vme or ssse3.

Fixes-Bug: 1535799
Change-Id: I6c8c1101771d1c5496884be7a405285472ae803a

group-policy/devstack,dirkmueller/devstack,richliu/devstack,bigswitch/devstack,dtroyer/devstack,Mahito/devstack,bigswitch/devstack,openstack-dev/devstack,bswartz/devstack,openstack-dev/devstack,samgoon/devstack,noironetworks/devstack,richliu/devstack,bswartz/devstack,nawawi/openstack,samgoon/devstack,nawawi/openstack,dtroyer/devstack,Mahito/devstack,noironetworks/devstack,dirkmueller/devstack,group-policy/devstack