Kernel commit 1bb5a356c3ea ("net: reduce USB network driver config
options.") hid the USB network drivers behind the new config symbol
CONFIG_USB_NET_DRIVERS.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44460 3c298f89-4303-0410-b956-a3cf2f4a3e73