Merge "Fix a Sms7BitEncodingTranslator threading issue, since translate() method can easily race when called by multiple threads." into rvc-qpr-dev am: 22b4b7c111

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12129459

Change-Id: Id8effff77be4d89335b433b6bc74adc586d525cf