UPSTREAM: ITE Keyboard scan: add registers for ITE keyboard scan driver

Add registers for it8xxx2 keyboard scan driver.

Signed-off-by: Ruibin Chang <Ruibin.Chang@ite.com.tw>
(cherry picked from commit 3360637affa60b4a0467bdbfbfcf0dd7918fa33a)

BUG=b:187192587
TEST=build hayato

Change-Id: Ib00681441ae46cae5ec8e588299b57f5a8c24241
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/2902165
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>
Tested-by: Ruibin Chang <Ruibin.Chang@ite.com.tw>
Commit-Queue: Keith Short <keithshort@chromium.org>
1 file changed