This enables the Cr50 to accept RW firmware updates over USB.
BUG=chrome-os-partner:50707, chrome-os-partner:50712
BRANCH=none
TEST=make buildall; test on Cr50
Build and run the extra/usb_updater utility. Watch the console,
and observe that the Cr50 updates and reboots into the new image
correctly.
Note that you'll have to rebuild the ec.bin image in order for
the update to take effect. Just reflashing the same image doesn't
cause the bootloader to change its selection.
All the previously existing endpoints continue to function normally.
Change-Id: I7bd22eae803c2ceeb14a767c06d3d5c9f1ac7c7a
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/338089
Commit-Ready: Vadim Bendebury <vbendeb@chromium.org>
66af587cbc