drm/i915/mtl: Add Wa_14015846243 to fix OA vs CS timestamp mismatch

Similar to ACM, OA timestamp that is part of the OA report is shifted
when compared to the CS timestamp. Add MTL to the WA.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221212220902.1819159-3-umesh.nerlige.ramappa@intel.com