drm/amdgpu: Add soc config init for GC9.4.3 ASICs

Add function to initialize soc configuration information for GC 9.4.3
ASICs. Use it to map IPs and other SOC related information once IP
configuration information is available through discovery.

For GC9.4.3 compute partition related callbacks are initialized as part
of configuration init.

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>