Whale: define reserved controls

BUG=chrome-os-partner:28870
TEST=Verify on Larvae board

Change-Id: Ia22206ebdeff2ded432bf65aa0c512814d7d4678
Reviewed-on: https://chromium-review.googlesource.com/202903
Commit-Queue: Justin Chuang <jchuang@chromium.org>
Tested-by: Justin Chuang <jchuang@chromium.org>
Reviewed-by: Dean Liao <deanliao@chromium.org>
1 file changed