Merge "Update preferred APN SharedPref when any APN is updated." into sc-dev am: 3759c695cb am: 33fd185692

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/providers/TelephonyProvider/+/15224562

Change-Id: Ie1cde826a682d002fcb8a14b430e34fbc5239e0a