drm/amdgpu: Fix register accesses in GFX v9.4.3

Access registers with the right xcc id. Also, remove the unused logic as
PG is not used in GFX v9.4.3

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2023-03-16 14:59:27 +05:30 • committed by Alex Deucher
commit 1e91a5f791