drm/amdgpu: Clean up errors in amdgpu_ring.h

Fix the following errors reported by checkpatch:

ERROR: spaces required around that ':' (ctx:VxW)

Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ran Sun 2023-08-02 07:28:13 +00:00 • committed by Alex Deucher
commit 1b01c010d7