vboot: Add firmware sync screens to vb2_screen
vboot: Add firmware sync screens to vb2_screen

Add VB2_SCREEN_FIRMWARE_SYNC and VB2_SCREEN_TOUCHPAD_SYNC screens to
enum vb2_screen.

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

Change-Id: Iddcd77bb79be7a29346d82b70a8dbb82d0b33fcb
Signed-off-by: Yu-Ping Wu <e17b963d2ce5bddd1fecae25c320252b132e804d@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2137151

coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot