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 <yupingso@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2137151
diff --git a/firmware/2lib/include/2api.h b/firmware/2lib/include/2api.h
index d932dbe..fbbb80e 100644
--- a/firmware/2lib/include/2api.h
+++ b/firmware/2lib/include/2api.h
@@ -1145,7 +1145,11 @@
 /* Screens. */
 enum vb2_screen {
 	/* Blank screen */
-	VB2_SCREEN_BLANK = 0,
+	VB2_SCREEN_BLANK			= 0x0,
+	/* Wait screen for EC sync and AUXFW sync */
+	VB2_SCREEN_FIRMWARE_SYNC		= 0x10,
+	/* Wait screen for touchpad sync */
+	VB2_SCREEN_TOUCHPAD_SYNC		= 0x11,
 };
 
 /**