CA-98753: Correct ha_restart_priority for VMs imported on post-6.0.0

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Merge pull request #1041 from siddharthv/CA-98753

CA-98753: Correct ha_restart_priority for VMs imported on post-6.0.0