drm/amdgpu: optimize list operation in amdgpu_xgmi

simplify the list operation.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kevin Wang 2021-02-03 17:36:51 +08:00 • committed by Alex Deucher
commit be8901c2ee