Move NetIdManager and ProfileNetworkPreferences from services/core to
packages/Connectivity/service.
This is a partial cherry-pick of a downstream change.
Bug: 186628461
Test: m
Merged-In: I454e8a0a8d0e0f9e6d21a8e8faf5a9e299962ad4
Change-Id: I6734c181dac39518b8d69be1e49d7f5f0a0a18da
The service-connectivity sources should be in
packages/modules/Connectivity. Move them to
frameworks/base/packages/Connectivity, so that the whole directory can
be moved to the dedicated packages/modules/Connectivity git project.
Bug: 186628461
Test: m
Merged-In: I26d1a274058fa38763ad4f605549d880865b4d76
Change-Id: Ie0562db92ebee269b901926d763ae907bde61b98