Update Android.bp following external/flatbuffers rebase am: caa8c1033a am: 0da9668207 am: 262c46b195 am: 62ff054c6b

Original change: https://android-review.googlesource.com/c/platform/external/libtextclassifier/+/2193466

Change-Id: Ief65091158980f1630af687d1243834a748ed3ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>