Modifications for Isochronous transfers
Detail: usbmodule.c - isochronous api modifications usb_subr.c - datatoggle fix.
Admin: Tested on ArmX6, pi b+ and pi 4, Pandaboard, BeagleBoard
Detail: usbmodule.c - isochronous api modifications usb_subr.c - datatoggle fix.
Admin: Tested on ArmX6, pi b+ and pi 4, Pandaboard, BeagleBoard