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

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

Change-Id: I3bafa1d5994b251cf4d689d2b75b234b96197700