Adding OpenWrt support for Comfast CF-WA900 V2

bene a while ............... Im not into doing patches etc, it's been a very long time indeed since I did any source code stuff of any type, the ONLY,changes required are what it says it's for and the LED changes I've posted, as for a patch NO, that's not me would not even know where to start nowadays, even when I did mess around with source code and the like it was only around the fringes pretty much.