Update vboot submodule to upstream master

Updating from commit id 46ff62c3:
  vboot: stop reading from ACPI for wpsw_boot

to commit id 55154620:
  vboot: Add screens for recovery using disk

This brings in 37 new commits.

Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: Ie184cbe6cc18cea540966d5801472ae821ea3e86
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40503
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions