usb: switch to mtp mode by default

Change-Id: I73bf151ea335df8156ce55db1acf499df3e1e2ee
wifiload: insmod mac80211

Change-Id: I4365a1de06f8fadf153177ada0ba1c89ade51cff
Update LUNFILE for new usb drivers

Change-Id: I2db591fb706f1b306706791acf90626a0d42fc65
Cleanups and enforce kernel min version

Change-Id: I3d36a2e44ecdf9b459b9cd1557e81d6ca04c933e