drm/amdgpu: release xcp_mgr on exit

Free on driver cleanup.

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Flora Cui <flora.cui@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: fcui-amd

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

@@ -4807,6 +4807,9 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev)
 	kfree(adev->fru_info);
 	adev->fru_info = NULL;
 
+	kfree(adev->xcp_mgr);
+	adev->xcp_mgr = NULL;
+
 	px = amdgpu_device_supports_px(adev_to_drm(adev));
 
 	if (px || (!dev_is_removable(&adev->pdev->dev) &&