[coreboot-gerrit] Change in coreboot[master]: Update vboot submodule to upstream master

[Julius Werner (Code Review)]

Hello Joel Kitching,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/37472

to review the following change.

Change subject: Update vboot submodule to upstream master
......................................................................

Update vboot submodule to upstream master

Updating from commit id 1c4dbaa0:
2019-11-18 Julius Werner   Makefile: Fix typo for MOCK_TPM

to commit id 6ef33b99:
2019-11-22 Hung-Te Lin     futility: updater: refactor: unify
                           getting temp files for firmware images

This brings in 13 new commits.

Change-Id: Ia3a2724f1f10d205026e62c3653823813b49b460
Signed-off-by: Julius Werner 
---
M 3rdparty/vboot
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/72/37472/1

diff --git a/3rdparty/vboot b/3rdparty/vboot
index 1c4dbaa..6ef33b9 160000
--- a/3rdparty/vboot
+++ b/3rdparty/vboot
@@ -1 +1 @@
-Subproject commit 1c4dbaa08419e13366db32ed20244f63c34388a0
+Subproject commit 6ef33b990578a9583a3ac53f2c835d4e16219b25