Add libtextclassifier to hwasan-postsubmit am: c19a0d46b3 am: e4832ed20e am: 79ca5ace7f am: d925c89f04 am: 6443e28951

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

Change-Id: Ieb242a44eeacdac0c575cc45dc19810a46f57f8a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>