Rename first variant for ExtServices to _tplus. am: 16dc578898

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libtextclassifier/+/23924731

Change-Id: I93db64998800cc763848e3bc32d5b326842f055c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>