Merge "Change default value from true to false for preferential network service enabling" into sc-dev am: 5fcdcebf am: d4c278d8 am: 885cfcb9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14669178

Change-Id: Iab09988ecb0ea2a0a0268c40378ae4d0e50a1b66