drm/amdgpu: add GC IP v11.5.2 soc21 support

drm/amdgpu: add GC IP v11.5.2 soc21 support

Add CG and PG flags for GFX IP v11.5.2 and
PG flags for VCN IP v4.0.5.

Signed-off-by: Saleemkhan Jamadar <saleemkhan.jamadar@amd.com>
Signed-off-by: Li Ma <li.ma@amd.com>
Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>