am 95ebe7a0: Use the specified verity key to sign boot and recovery OTA images.

  assert p.returncode == 0, "mkbootimg of %s image failed" % (

      os.path.basename(sourcedir),)

  if info_dict.get("verity_key", None):

    path = "/" + os.path.basename(sourcedir).lower()

    cmd = ["boot_signer", path, img.name, info_dict["verity_key"], img.name]

    p = Run(cmd, stdout=subprocess.PIPE)

    p.communicate()

    assert p.returncode == 0, "boot_signer of %s image failed" % path

  img.seek(os.SEEK_SET, 0)

  data = img.read()