package/usbip: add missing kernel options
usbip needs USBIP_CORE, which needs network support (NET), and both
basic USB support (USB_SUPPORT) and host-side USB support (USB).
Both NET and USB are usually enabled, so they got missed when adding
usbip in f05f2c1ad717 (package/usbip: new package).
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Julien Olivain <ju.o@free.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>