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

* whitechapel:
  edgetpu: use better defines to select right code
  edgetpu: tpu_usage_add take struct tpu_usage as parameter
  edgetpu: set ctx to domain token when mbox detached
  edgetpu: abrolhos get domain by context ID
  edgetpu: abrolhos support iommu token
  edgetpu: introduce token to edgetpu iommu domain
  edgetpu: abrolhos fix mmu attach
  edgetpu: abrolhos fix mmu_attach potential mem leak

Signed-off-by: Nrithya Kanakasabapathy <nrithya@google.com>
Change-Id: I1bb9ce92667f69597f5aab9b0e189c526d93a0bd