[automerger skipped] Change NN canonical timings to nanoseconds -- hal am: 4024d8f4d8 am: 004a3b37b1 am: 944b678ce4 -s ours

am skip reason: Change-Id If44d9aefadb2c78b632ff289b5ff5a49f766525c with SHA-1 ca11420785 is in history

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1534938

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I21ed546e33b624345e830462c5f3339361771717