futility_s: add vbutil_firmware & vbutil_key
futility_s: add vbutil_firmware & vbutil_key

The firmware updater relies on these, so include them.

BUG=chromium:772862
TEST=build works and futility_s includes new commands
BRANCH=None

Change-Id: I973e339d11df4d5b72f70d3a9e28916cca4ebbf6
Reviewed-on: https://chromium-review.googlesource.com/708236
Commit-Ready: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Tested-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Reviewed-by: Furquan Shaikh <6be5c96c464778f89679b1062a2e0a6af93d2aa5@chromium.org>

coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot