MFC r256548:
Correct programming of XXX_MAXP register. This register is 16-bit wide
and not 8-bit. Fix support for isochronous transfers in USB host mode.
Fix a whitespace while at it.

PR:		usb/181987
Approved by:	re (Xin Li)
MFC r256500:
Add new USB ID.

PR:		usb/182936
Approved by:	re (Xin LI)
Obtainedrom: