Add MOBILE_DATA_PREFERRED_APPS setting am: 7a4eeed62f am: ef7295f1ba

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

Change-Id: I25b39c8f35dd80d13775c4a9c5074b2cd8c9f297
tree: 8345eb2528e4a5d5d9a3ebdc6e8f1c331518699b
  1. framework/
  2. service/
  3. OWNERS
  4. TEST_MAPPING