drm/amdgpu: add gfx12 register support in ipdump

Add general registers of gfx12 in ipdump for
devcoredump support.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>