drm/i915: Notify GuC rc6 state
drm/i915: Notify GuC rc6 state

If rc6 is enabled, notify GuC so it can do proper forcewake before
command submission.

Signed-off-by: Alex Dai <5900453bed04d10de9d8f6afb7187a07f8704bb0@intel.com>
Reviewed-by: Tom O'Rourke <65356acdea8e874b4f8d4b467858cc41cc28e3c4@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs