Update vboot submodule to upstream master

Update from commit a1c5f7c0
vboot_reference: Add support for 3072-bit exponent 3 keys

to commit 04b3835b
Add a script to generate a keypair for signing Rose RW firmware

This brings in 34 new commits.

Change-Id: Ifa304af5c2cf0bcc466dfc4878dd9d08436eec75
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20228
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>

1 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/vboot b/3rdparty/vboot
-Subproject a1c5f7c006b7bb3d5894f132f70ba3bbadfd9d6
+Subproject 04b3835b69606429f6e47234e1f730b62bd5ee7