drm/amdgpu: split pipeline sync out of SDMA vm_flush() as well

Code it similar to how we did it for the gfx and compute engines.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 files changed