Add min_sdk_version to connectivity targets

All targets need min_sdk_version 30 to be included in the tethering
APEX. They will actually never be used on SDK 30 and are only loaded on
31, but this is necessary to be included in com.android.tethering.

Original change (project moved):
I190fd1f3c9fabff057d0a2bd7f45b63a4fe447b3

Bug: 171540887
Test: m
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Change-Id: Ied5faa1a370cbc8836f46388fdb9b42d2a263232
4 files changed