CLOUDSTACK-6453: [GPU] Windows 2012 Server instance created with vGPU offering is not coming up after installing PV drivers.

(cherry picked from commit dc22566c642e400014332045a224e5545d33a11c)
CLOUDSTACK-6884: List Capacity API always returns GPU capacity also even if type is different.

(cherry picked from commit 48646ae186eb75052da3da385404a823bd785444)