drm/amdgpu: consolidate case statements

IP_VERSION(11, 0, 13) does the exact same thing as
IP_VERSION(11, 0, 12) so squash them together.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2021-09-29 12:06:03 -04:00
commit 4b3a624c4c