PPSSPP for Pi

[Sim_Piko]

@arutema, You forgot to compile FFMPEG libraries included with PPSSPP

Also, sorry guys for not responding for... nearly 2 years now
In December 2014 I've managed to compile (somewhat) functional version of PPSSPP, but since then, I couldn't get myself together to write some kind of guide on how to. In the meantime my Rpi1 died, my bro bought me rpi2b, recently hdmi went dead, etc., etc.

The thing is, if I won't forget, I'll post what I needed to change in PPSSPP's code to make it run.