drm/amdgpu: disable compute pipeline sync workaround when using fixed fw

No need to stall the pipe when we are using firmware with the
fix.

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-06-17 17:05:15 -04:00
commit 93dcc37d2c