drm/amdgpu: add soc21 common ip block support for GC 11.0.4

Add common soc21 ip block support for GC 11.0.4.

Signed-off-by: Yifan Zhang <[e-mail]>
Reviewed-by: Aaron Liu <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/soc21.c

···
 			AMD_PG_SUPPORT_JPEG;
 		adev->external_rev_id = adev->rev_id + 0x20;
 		break;
+	case IP_VERSION(11, 0, 4):
+		adev->cg_flags = 0;
+		adev->pg_flags = 0;
+		adev->external_rev_id = adev->rev_id + 0x1;
+		break;
+
 	default:
 		/* FIXME: not supported yet */
 		return -EINVAL;