Use DeviceConfigUtils for ConnectivityResources

De-duplicate the code by using
DeviceConfigUtils.getConnectivityResourcesPackageName.

Bug: 279108992
Test: atest
(cherry picked from https://android-review.googlesource.com/q/commit:219cc13b272e964931cca366b849bc7e85f9bb1f)
Merged-In: I54733016a9b902d5c209010161363c41bc8f1cce
Change-Id: I54733016a9b902d5c209010161363c41bc8f1cce
1 file changed