adb: make \'wait-for-{recovery,sideload,bootloader} work.
am: 3d8df3c  -s ours

* commit '3d8df3cb2a80676b35a0641c03e1164eb876883f':
  adb: make 'wait-for-{recovery,sideload,bootloader} work.

Change-Id: I3590cb9e8b3045fb298fd7a8f434d9175dde4989