multi vap Multi-SSID unique bssid eliminates client connect failures

[Kim Culhan]

Having each vap with a unique bssid appears to have eliminated a
problem with a client
not being able to connect to all vap in a 4-vap test setup.

The configuration which achieves unique bssid :

create_args_wlan0="wlanmode hostap wlanaddr f8:d1:11:38:3c:e5"
create_args_wlan1="wlanmode hostap wlanaddr fa:d1:11:38:3c:e5"
create_args_wlan2="wlanmode hostap wlanaddr fc:d1:11:38:3c:e5"
create_args_wlan3="wlanmode hostap wlanaddr fe:d1:11:38:3c:e5"

This has been 'tested' so far in the case of all vap running in OPEN
mode and for
a config with 1 OPEN mode and 3 WPA2.

-kim