commit 91fefadc2e99ffd7e6fb12637dcf94df547cdb89
author Jocelyn Bohr <bohr@google.com> Fri Jan 27 14:17:56 2017 -0800
committer Jocelyn Bohr <bohr@google.com> Thu Apr 27 16:47:51 2017 -0700
tree 0a9809599e1f7d1ae7384ca13ffb09a13f0499ba
parent 98cc28316866e554f6fcb2c2e4f96ca09d98130f

fastboot: Add 'get_staged' command

(cherry-picked from internal nyc-iot-dev to AOSP)

New user-level command usage:

 * fastboot get_staged <outfile>
   Reads staged data from the last command handled by the device. If the
   last command did not result in staged data, this command will fail.

This enables data staged by OEM commands to be transferred from device
to host. get_staged wraps new device command "upload". Fastboot
clients are not required to support "upload", so get_staged won't
work on all devices.

Bug: 36002804
Test: Implemented "upload" in fastboot on imx6ul. Verified that uploading
      ~100K data from the device works.
Change-Id: I5b1a1ce023f362062505ee62746ea8ab6f36bfbf
(cherry-picked from commit 83a875de994bf48f0faa2a8a23ceb0b8f52b6b04)