[CS16]Add apex_available for tethering to PlatformProperties

ConnectivityService is going to become a mainline module, and
it will not able to use hidden method anymore. Using PlatformProperties
as a static library instead of hidden API.

Bug: 170917042
Test: atest FrameworksNetTests
Merged-In: If6cf3bc6c52b9298b703d8a04b1fbbcf4b72fef8
Change-Id: If6cf3bc6c52b9298b703d8a04b1fbbcf4b72fef8
1 file changed
tree: 784d68e284461078dd9d2caeba94d0a7b156b81d
  1. srcs/
  2. OWNERS