Merge "[BR07.2] Redirect data saver switch to ConnectivityManager" into main am: 1b2856eef0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2745114

Change-Id: Ibdfee99914472a4ccf10af8a889a7fd71f234efe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>