Merge "Update preferred APN SharedPref when any APN is updated." into sc-dev am: 3759c695cb am: 02294b37d5

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

Change-Id: Ic88b11188d2cd0564bad17db1305d1a986b30542