futility: Support C2D2 with futility update --servo.

C2D2 is used similarly to servo micro. Mirror the servo micro logic
accordingly.

BUG=b:220992685
TEST=futility update --servo over C2D2 with and with servo v4
BRANCH=None

Cq-Depend: chromium:3470605
Change-Id: I298fe5847abba0957fa5c2da4e1981a7da9e0428
Signed-off-by: Sam McNally <sammc@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3469746
Reviewed-by: Reka Norman <rekanorman@chromium.org>
1 file changed