drm/amd/include : Update MES v12 API for fence update

MES fence_value will be updated in fence_addr if API success,
otherwise upper 32 bit will be used to indicate error code.
In any case, MES will trigger an EOP interrupt with 0xb1 as
context id in the interrupt cookie

Signed-off-by: Shaoyun Liu <shaoyun.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>