firmware_ECBootTime: Fix regex pattern to match new EC messages

EC console message has been simplified. This fixes the regular
expression patterns to match current EC console message.
Also, this adds a firmware action to hit ctrl-D when dev mode is on.

BUG=chrome-os-partner:12783
TEST=Test passed

Change-Id: I6b0d5667d127eed03428873a10bae438bc1437e7
Reviewed-on: https://gerrit.chromium.org/gerrit/30978
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Commit-Ready: Vic Yang <victoryang@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
1 file changed