vboot/ui: Fix access on to_dev screen
vboot/ui: Fix access on to_dev screen

Broken recovery mode should not access to_dev screen.

BUG=b:146399181
TEST=CC=x86_64-pc-linux-gnu-clang;
     make clean && make runtests
BRANCH=none

Signed-off-by: Hsuan Ting Chen <ac2917b87838b7bb62e5c0056c190a1955e52056@chromium.org>
Change-Id: I3e5802c14968aafe40d25e69505c518c0c5b45d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2228256
Reviewed-by: Joel Kitching <c2feea8c1334a0d339e816ae4c7c9ecfa9b30a91@chromium.org>
Reviewed-by: Yu-Ping Wu <e17b963d2ce5bddd1fecae25c320252b132e804d@chromium.org>

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