add control-* keymap config

BUG=chromium-os:15243
TEST=build seaboard and kaen cleanly

Change-Id: I41fe87ac10798bebad60573b552d7ce5a5116dd2
Reviewed-on: http://gerrit.chromium.org/gerrit/1355
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
6 files changed