Actually, I don't have this router but I try build the firmware using this patch > http://lists.infradead.org/pipermail/lede-dev/2016-November/003782.html
I think you should be try 
Actually, I don't have this router but I try build the firmware using this patch > http://lists.infradead.org/pipermail/lede-dev/2016-November/003782.html
I think you should be try