Replace ConnectivityManager constants to TetheringManager

Replace some ConnectivityManager constants as TetheringManager inside
tethering module. No API change, will have follow up CL to delete
@hide tethering constants in ConnectivityManager and replace caller
to using TetheringManager.

Bug: 144753389
Test: build
Change-Id: Ia1b963669722c32d147375763205ed2f3af52fed
1 file changed
tree: 364684fb470053cbbc8f28f679485364b6c61c98
  1. core/
  2. services/
  3. tests/