vboot: use vboot persistent context

vb2_context object is now stored on the workbuf as part of
vb2_shared_data.  Use vboot's new API functions vb2api_init
and vb2api_relocate to create and move the workbuf.

BUG=b:124141368, chromium:994060
TEST=Build locally
BRANCH=none

Change-Id: I051be1e47bf79b15a1689d49a5d4c031e9363dfa
Signed-off-by: Joel Kitching <kitching@google.com>
Also-Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/1902339
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>

1 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/vboot b/3rdparty/vboot
-Subproject 87276ffed46b3c64ff62153ac8599a79b9bcb68
+Subproject ecdca931ae0637d1a9498f64862939bd5bb99e0