linbl: add more missing function declarations
wpa_supplicant: silence compiler (unused-functions)
dde_linux: add wpa_supplicant config.c patch
wpa_supplicant: build nl80211 as DSO

The wpa_driver_nl80211 depends on libnl, which depends on its own user
lx_emul env. In addition the driver also depends on the env for a few
functions, e.g. ioctl(). Since the wpa_supplicant frontend is actually
linked against our Freebsd-based libc, we have to hide all symboles
provided by the user lx_emul env to prevent funny(tm) things from
happening.
libnl: more dummies for wpa_driver_nl80211
wpa_supplicant: use new driver lib
dde_linux: short-term fix for patch handling
wpa_supplicant: enable config_args

For now, let's use the normale cli frontend.