drm/amdgpu: fix incorrect comment format
Comments should not have a leading plus sign.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by