add mising string for this commit:
https://github.com/AOSPA-legacy/android_frameworks_opt_telephony/commit/477b0fbfcc5ab5042760c2e4b7ffe9820f02fc0f

Change-Id: I3e3346154a72a8a52364390c375cd9aa2ceef8a8
Signed-off-by: cj360 <ayunker551@gmail.com>