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

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

Change-Id: I9c2d5fb84bbda9305918b816d000ee3a4534caab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>