Makes mbedgt-network-wifi case to skip channel number check
Makes mbedgt-network-wifi case to skip channel number check

2.4GHz and 5GHz channels might be using the same SSID. Wifi scan
might also fail occasionally to find secure- and unsecure channels
on same scan so lets not assume that we'll find both.

mbedmicro/mbed,andcor02/mbed-os,c1728p9/mbed-os,mbedmicro/mbed,andcor02/mbed-os,kjbracey-arm/mbed,andcor02/mbed-os,c1728p9/mbed-os,c1728p9/mbed-os,andcor02/mbed-os,c1728p9/mbed-os,kjbracey-arm/mbed,andcor02/mbed-os,andcor02/mbed-os,mbedmicro/mbed,kjbracey-arm/mbed,mbedmicro/mbed,c1728p9/mbed-os,c1728p9/mbed-os,kjbracey-arm/mbed,mbedmicro/mbed