vboot: Add language selection screen to vb2_screen

Add VB2_SCREEN_LANGUAGE_SELECT to enum vb2_screen.

BRANCH=none
BUG=b:146399181
TEST=USE="menu_UI" emerge-nami depthcharge

Change-Id: I441e5dd65c8c1f91ec868d3ab477b61b0c3e9cc5
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2200577
1 file changed