spring: do not hibernate for board rev 9-12

On board rev 9 to rev 12, hibernating actually consumes more power. Stop
hibernating for these boards.

BUG=chrome-os-partner:21107
TEST=None
BRANCH=Spring

Change-Id: I42c88a816cad076059809ecb6c7bfd8f409d6a0f
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63573
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
1 file changed