commands.py: Support homogenous RO/RW FW bundles.

CL:488128 added support for what was thought to be the new "BIOS (RW)
version" fields, however it's not that it was the new format.  It's
actually present when a firmware bundle contains a mixed RO+RW version.
Therefore, searching for both types of version strings needs to be
supported.

This commit adds back support for the "BIOS version" strings.

BUG=chromium:714786
TEST=python ./run_tests
TEST=Run tryjobs against caroline and kevin.

Change-Id: I06a67207e7a7add7b98187977174dc61d600ee43
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/490836
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
(cherry picked from commit dd945b10be42e7ade7613700b711b2ddb88d43d4)
Reviewed-on: https://chromium-review.googlesource.com/494707
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
3 files changed