[Trusty SRU v3] Windows guest got 0x5c BSOD when rebooting

[Tim Gardner]

I dropped the use of DR6_RTM in the second patch. Since it was only ever used
in that specific patch and never defined elsewhere, its absense should
be benign. I actually test compiled this time.

[PATCH 1/2 V3] KVM: x86: reset RVI upon system reset
[PATCH 2/2 V3] KVM: x86: Emulator should set DR6 upon GD like real CPU

rtg