Smaller apps and faster GPU inference with LiteRT in Google Play services

LiteRT in Google Play services now offers GPU inference about 1.4x faster than the legacy GPU delegate via ML Drift and the new CompiledModel API, and apps that switch are about 8 MB smaller because the runtime ships with Play services instead of inside each app. The runtime supports phones back to Android 7, plus Wear OS 4+ and Android Automotive OS (Android 11+), and the legacy GPU delegate and custom delegate APIs are deprecated, with NNAPI to be removed starting in 2027.