[Cin]Few more patches for cingg on Linux/ppc

As promised long ago I tried to make adding -latomic and disabling vsx in our x264 for case where it does not work (older PPC processors) automatic. I think I hit problem with our lv2 (lilv/suil) not picked up if system ones do not present at compile time, but this is another problem I'll try to solve. For now can you test attached four patches and make sure they do not break anything else (x86/amd64)? I tried them on Termux/aarch64 and here they seems to be harmless.