Use SettingsShim to hide different implementation in shim

TetheringService call different Settings API to check write settings
permission between R and S.

Bug: 182211575
Test: install S module to R device and both run mts tests build with S
and R.

Ignore-AOSP-First: to address the conflict
Change-Id: I3e7f6525e9776992bd96b17c132b749b12285bbd
2 files changed
tree: c293b60f36ca0e8ba9b40859a07977b94821d93f
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING