linux: enable DVB_USB_DVBSKY

.. at least s960 is reported to work
linux: clean up uio
linux: update dvbsky patch (dvb-usb-v2 build fail)
xbmc: update FM patch
linux: clean up lirc / staging
linux: clean up led trigger
linux: (re)enable uas
linux: clean up hid

... mostly non-hif compilant stuff, game controllers and mices
linux: clean up agpgart