it83xx: Added CONFIG_SWITCH support.

This change updates switch status to EC MEMMAP.

BRANCH=none
BUG=none
TEST=Use 'mmapinfo' console command to verify lid status.

Change-Id: I80b9e407a8793f2de84011473cd51c5453d77859
Signed-off-by: Dino Li <Dino.Li@ite.com.tw>
Reviewed-on: https://chromium-review.googlesource.com/483259
Reviewed-by: Randall Spangler <rspangler@chromium.org>
1 file changed