Merge "Fix a Sms7BitEncodingTranslator threading issue, since translate() method can easily race when called by multiple threads." am: 02b664649a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1360883

Change-Id: I74f69217af75d4e4456fb05c788d334c25e9b37b