Avoid using magic numbers for structures and ease the day for those
who do not remember IEEE 802.11 specifications by heart.
- Add a #define that matches by name with one used since day one
of Visual Studio 2008 (VS2005 does not have Native Wi-Fi SDK)
- Remove magic constant from DOT11_SSID.ucSSID size definition
Reference: https://learn.microsoft.com/en-us/windows/win32/nativewifi/dot11-ssid
CORE-6905
