Add USB PD support for port 1 (on the flex cable).
BUG=chrome-os-partner:40920
BRANCH=none
TEST=load onto glados and test zinger and hoho in both
polarities on both ports and verify PD contract established.
Change-Id: Ib7ac2e630c0a8f278c8b74c348cc6dc7183f53ec
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/275072
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
706fcb19ca