Add console commands to send the Vendor-Defined Messages used to flash a
USB-PD target.
Also add a simple test script to flash Zinger through its CC line. To
run the script, the board must have CONFIG_USB_PD_CUSTOM_VDM defined.
By default fruitpie has this config option enabled.
BRANCH=none
BUG=chrome-os-partner:28330
TEST=With a fruitpie connected to a zinger run
./util/flash_pd.py ./build/zinger/ec.RW.flat
and see Zinger booting on RW.
Change-Id: I06f8f545e28b93b2e646e668d81b594eb7976a2d
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/203375
Reviewed-by: Todd Broch <tbroch@chromium.org>