Re-enable bus mastering after GPU reset. We disable it
at the top of these functions, so balance them by
re-enabling it.
Signed-off-by: NChunming Zhou <David1.Zhou@amd.com>
eviewed-by: NChristian König <christian.koenig@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>