'netifd' treats all devices with a "." in their name as vlan devices.
Modify the name of virtual/WDS interfaces created by broadcom-wl to use
a "-" instead of a ".", so they will be treated as simple devices
by 'netifd'.
Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38748 3c298f89-4303-0410-b956-a3cf2f4a3e73