drm/i915/skl: Support Y tiling in MMIO flips
drm/i915/skl: Support Y tiling in MMIO flips

Add Y tiling support to skl_do_mmio_flip.

Signed-off-by: Tvrtko Ursulin <82325a91373a06cdf12f953d4611ffb7756aa8d4@intel.com>
Cc: Damien Lespiau <64bd3cb94f359c1a3ce68dae5e26b40578526277@intel.com>
Cc: Sonika Jindal <cd61f9fbc6d7aeabe3269febf35c0efd90c23268@intel.com>
Cc: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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