[Linux] OpenMandriva & ROSA builds and patches

[Pulfer]

Since 0.8 we have PPSSPP builds in official OpenMandriva & ROSA repositories. PPSSPP is compiled with system ffmpeg and patched to load Atrac3+ plugin installed from ppsspp-at3plus-plugin package.

There's also one patch that I find very useful. It adds hotkey to swap D-pad and left joystick inputs during emulation. Because some games use D-pad for movement while others use joystick for movement and D-pad for map, items etc.
Patch: https://abf.rosalinux.ru/openmandriva/pp...rols.patch

Packages' source gits (RPM specs and patches):
https://abf.rosalinux.ru/openmandriva/ppsspp
https://abf.rosalinux.ru/openmandriva/pp...lus-plugin

It may be useful for other Linux distributions that don't have PPSSPP in their repositories yet.