Merge branch 'whitechapel' into android-gs-pixel-mainline

* whitechapel: (23 commits)
  edgetpu: abrolhos: fix out-of-tree module build
  edgetpu: remove unused kci_ack() function
  edgetpu: report device and TPU (GCB) utilization stats
  edgetpu: use usage_stats update as software watchdog ping
  edgetpu: share code between Abrolhos and Janeiro
  edgetpu: fixup firmware info buffer setup error message
  edgetpu: abrolhos: do GSA shutdown on forced power down
  edgetpu: fix pchannel state support method
  edgetpu: refactor edgetpu_mmap interface to avoid deadlock
  ...

Signed-off-by: Nrithya Kanakasabapathy <nrithya@google.com>
Change-Id: If2aca8b1e939b7634b74ccfcf4740eae1f8bb196