[automerger skipped] Add quantized LSTM op. am: 232cfebd5b am: f3c5bf1cc8 am: db335ad7fb -s ours
am skip reason: Change-Id I8aab51695382211e003d8fc442d33bae3006dc13 with SHA-1 c8b0cd33b9 is in history

Change-Id: If7c7785cc0d7a5cd1bc112997b305d9afdc22a6a