anv: cs_stall during flush_compute_state only for < Gen12.5
The CS Stall in cmd_buffer_flush_compute_state is only required on HW that uses MEDIA_VFE_STATE, gen12 and previous.
Red Dead Redemption 2: speedup +3%
The CS Stall in cmd_buffer_flush_compute_state is only required on HW that uses MEDIA_VFE_STATE, gen12 and previous.
Red Dead Redemption 2: speedup +3%