The protos are built separately by framework-connectivity from framework
protos, keeping only android.net protos for the connectivity jar.
Bug: 171860710
Test: m framework-connectivity.impl
Change-Id: I2c4a37ff2ee9e8efde49885feeafa27dcff7ca2c
Merged-In: I2c4a37ff2ee9e8efde49885feeafa27dcff7ca2c
The library will be included in the connectivity module APEX when
migrating its sources out of framework-minus-apex.
Bug: 171540887
Test: m
Change-Id: I1595521eaced6e6997c076bb56b06ffdd22a4fa0