amdgpu: fix build on non-DCN platforms.

This fixes the build here locally on my 32-bit arm build.

Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit f439a959dc)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dave Airlie 2023-01-27 12:15:13 +10:00 • committed by Alex Deucher
commit cdf657fc1f