drm/amdgpu: add Vangogh APU flag to IP discovery path

Add the missing apu flag for Vangogh when using IP discovery code path
to initialize IPs
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -2178,6 +2178,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		break;
 	case IP_VERSION(10, 3, 1):
 		adev->family = AMDGPU_FAMILY_VGH;
+		adev->apu_flags |= AMD_APU_IS_VANGOGH;
 		break;
 	case IP_VERSION(10, 3, 3):
 		adev->family = AMDGPU_FAMILY_YC;