regions: Add a new 'gb.usext' for GB devices with US extended keyboard.
For GB devices to support US extended keyboard, we need a region code.
Note the region code is assigned with ID 258 so devices having this
region code must have HWID config file migrated to new list format.
BUG=chromium:703544
TEST=./regions_unittest.py
CQ-DEPEND=CL:456988
Original-Reviewed-on: https://chromium-review.googlesource.com/456961
Change-Id: Ie0efd58ed29eff86edced67af856325ae557c36c
Reviewed-on: https://chromium-review.googlesource.com/458177
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Trybot-Ready: Hung-Te Lin <hungte@chromium.org>
1 file changed
