drm/amdgpu/pm/smu12: cache smu firmware version

So we print the proper SMU firmware version in debugfs, ioctls, etc.
for Renoir.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-11-06 09:49:10 -05:00
commit c15015b831