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: Id32b056d616d07b09e7f1fe9207fd6b194be66ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>