VBOOT2: Add work buffer too small error message

Update VBOOT2 to add work buffer too small error message.

BRANCH=none
BUG=None
TEST=Build and run on kunimitsu

Change-Id: Icb4b873e0c350a5667948e106c111356acab6a82
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/295753
Commit-Ready: Leroy P Leahy <leroy.p.leahy@intel.com>
Tested-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed