drm/amdgpu: use IP presence to free uvd and vce handles

Rather than checking the asic type, check whether the UVD
or VCE IP blocks exist.  This way we don't have to update
the check with new asics that use VCN.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -974,10 +974,10 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
 
 	pm_runtime_get_sync(dev->dev);
 
-	if (adev->asic_type != CHIP_RAVEN && adev->asic_type != CHIP_PICASSO) {
+	if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_UVD) != NULL)
 		amdgpu_uvd_free_handles(adev, file_priv);
+	if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_VCE) != NULL)
 		amdgpu_vce_free_handles(adev, file_priv);
-	}
 
 	amdgpu_vm_bo_rmv(adev, fpriv->prt_va);