Merge "Add clarification text on getCallerNumberVerificationStatus docs." am: f83bccb02f am: 793b248026 am: 0b22366dc7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1455218

Change-Id: I6f93ead176a20d649eb32456288f40b2d8a9d116