usb: xhci: Fix root hub descriptor
When a system has multiple XHCI controllers, some of the properties described in the descriptor of the root hub (such as the number of ports) might differ between controllers. Fix this by switching from a single global hub descriptor to a hub descriptor per controller. Signed-off-by:Mark Kettenis <kettenis@openbsd.org> Reviewed-by:
Marek Vasut <marex@denx.de>