drm/amdgpu: Move VBIOS version to sysfs

sysfs is more stable, and doesn't require root to access

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed