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

* whitechapel: (36 commits)
  edgetpu: add accessors for firmware build CL and timestamp
  edgetpu: retrieve build CL and timestamp from firmware via KCI
  edgetpu: pin user pages before holding locks
  edgetpu: remove edgetpu_ioctl_check_group
  edgetpu: dmabuf ioctls accept client as param
  edgetpu: abrolhos ignore return value of OPEN_DEVICE
  edgetpu: multi ioctl handlers accept client param
  edgetpu: ioctl (un)set eventfd accept client as param
  edgetpu: add launch_complete firmware callback
  edgetpu: ioctl_(un)map_buffer accept client as param
  ...

Signed-off-by: Nrithya Kanakasabapathy <nrithya@google.com>
Change-Id: I476e4fd38dc4acfb542e25657c8a5ea6f49e94db