Update greybus to work on reccent zephyr
This updates greybus to work with a recent zephyr (3.2).
Only tested with on boards devices which means that pretty much nothing has been tested.
Requires:
https://git.beagleboard.org/beagleconnect/linux/gbridge/-/merge_requests/3
https://git.beagleboard.org/beagleconnect/zephyr/zephyr/-/merge_requests/1