Help adding support for Fortinet FortiAP-220B

by the way, if anyone in North America wants a good deal on similar boards, I bought some of these. It's the next Fortinet device I'm going to add support for (in a few months or less)

@Leo-PL any update? are you going to post your PR soon?

and let me know if you need any help

@mpratt14 Everything's working just fine, I just need to return from vacation to finish up commit message. You can take a look there already: https://github.com/Leo-PL/openwrt/tree/fortinet-fortiap-220b