Merge "Adding OEM Network Preferences for testing" am: ee638e2670 am: bad8f6262f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1659163

Change-Id: I982301cdaf36457d1adecbcda1ffa6457fd3bfab
tree: 0b7d876322340ce398a85e6f02edfe4b024e27c8
  1. framework/
  2. service/
  3. OWNERS
  4. TEST_MAPPING