Merge "Expose parsing util methods for telephony validation" am: 5092ae8c8b am: 2bf2f964d7 am: ad03a4a172

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1665959

Change-Id: I9116d44ad96ac2a4af5631541c6b27fe1813c81d