vboot: bulk fix tabs and spacing inconsistency

Problem files were found with:
  find . -name '*.c' -o -name '*.h' | xargs grep '^ [^*]'
and edited manually.

Ignores utility/ and cgpt/, since they seem to globally adhere
to a two-space tab convention.

TEST=make clean runtests
TEST=emerge vboot_reference depthcharge

Change-Id: I5a678484a119c8f1911f717e1968bdb4f1a0810f
Reviewed-on: https://chromium-review.googlesource.com/1160131
Commit-Ready: Joel Kitching <kitching@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
73 files changed