Use connectivity resources in service-connectivity

Migrate resource usage to the connectivity resource package.
For framework resources that have known overlays, keep a fallback until
the overlays can be migrated.

Bug: 182125649
Test: atest FrameworksNetTests
Merged-In: I778d94a5aac0c4e20e78b1ba3a002495c17a38a0
(clean cherry-pick)

Change-Id: I778d94a5aac0c4e20e78b1ba3a002495c17a38a0