Add `android.system.vold` to sepolicy

Allow the `vold` service to expose the `android.system.vold.IVold`
interface to vendor.

Bug: 362567323
Test: acloud create
Change-Id: I074228c4a1033ddc63a547f15b093fe62a4ae86b
diff --git a/private/service.te b/private/service.te
index a90b3ba..ce648c2 100644
--- a/private/service.te
+++ b/private/service.te
@@ -60,6 +60,7 @@
 ')
 
 type uce_service,                      service_manager_type;
+type fwk_vold_service,                 service_manager_type;
 type wearable_sensing_service,         app_api_service, system_server_service, service_manager_type;
 type wifi_mainline_supplicant_service, service_manager_type;
 type dynamic_instrumentation_service,  app_api_service, system_server_service, service_manager_type;