Tidy up bundle_firmware to stand alone

This removes bundle_firmware's dependence on a parser option for its
configuration.

BUG=chromium-os:17753
TEST=manual: ~/trunk/src/platform/dev/host/cros_bundle_firmware -w

Change-Id: I5d2f18547d518823d59f8fd1c291c62a773a5917
Reviewed-on: http://gerrit.chromium.org/gerrit/4344
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
4 files changed