[Cin] Thirdparty makefile patch

Please find attached a thirdparty/Makefile patch, that corrects the two remaining invalid dummy configure scripts. Tested on Fedora_35/X86_64 and Debian_11/aarch64. This fix does not fix any problems, it only clears up the process. CinGG will build fine without it, but with this patch all thirdparty sources are treated the same. MatN