BUG=chromium-os:31902
TEST=manual
1. reboot ec
2. port80; nothing there
3. powerbtn
4. retype port80 repeatedly during boot and see it fill and then scroll
Change-Id: Id227d5debbdd635332ed2f42bc0f163833031b5c
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/25442
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>