Add MOBILE_DATA_PREFERRED_APPS setting am: 7a4eeed62f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1654015

Change-Id: I4d5c5cfaa2a35a6919517c6e5737fffdd0f217f3
tree: 8345eb2528e4a5d5d9a3ebdc6e8f1c331518699b
  1. framework/
  2. service/
  3. OWNERS
  4. TEST_MAPPING