mediatek: add kmod-usb3 to default package set of the ZBT-Z8102AX
Include XHCI USB drivers on the ZBT-Z8102AX router, the drivers are
required to be able to use the USB-connected M.2 slots for 4G/5G modems.
Signed-off-by: Daniel Golle <[email protected]>
Daniel Golle