At this point, EC code requires EVT. If you still have a proto1,
here's what'll break:
1) Keyboard recovery mode checks refresh key, and may read unreliably due
to proto1 silego reset circuit.
2) Lightbar may not start in the correct state.
3) EC 'hibernate' command will not work.
4) Board version may read incorrectly.
BUG=chrome-os-partner:9661
TEST=manual
1) powerbtn -> system powers on, lightbar displays proper sequence
2) version -> board version 1 (EVT)
3) power+refresh+esc -> system boots into recovery mode
4) power+refresh, then power button -> system reboots, then boots normally
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Change-Id: I699946e365d15ae38622b69da1a0241e72d05f61
Reviewed-on: https://gerrit.chromium.org/gerrit/26053
Reviewed-by: Bill Richardson <wfrichar@chromium.org>