Add libtextclassifier to hwasan-postsubmit am: c19a0d46b3 am: e4832ed20e

Original change: https://android-review.googlesource.com/c/platform/external/libtextclassifier/+/2032825

Change-Id: I824e2c63c3bbebca895d6227d75eb1f700697b7d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>