Export libtextclassifier am: d0ae7c6c17 am: 90e96dd75f am: 4f5b16bb22

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libtextclassifier/+/10862012

Change-Id: I299e18755bd55fe8769060dce5d4e7a4e49cd166