update_program_fw: Add support for minor version

Add support to handle minor version of firmware e.g 13310.3
Default of minor version is 0.

BUG=none
TEST=Update puff with firmware 13324.3

Change-Id: I13e0b0cb557898c232950b24adf4bc3fe618718d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2299927
Tested-by: Andrew McRae <amcrae@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Commit-Queue: Andrew McRae <amcrae@chromium.org>
1 file changed