Converted metadata to yaml

pkg.info

@@ -1,7 +1,10 @@
 name: libffi
 description: A Portable Foreign Function Interface Library
 version: 3.4.4
+revision: 2
 url: https://sourceware.org/libffi/
 license: MIT
 architecture: any
+depends: ["glibc"]
+make_depends: ["bash","binutils","coreutils","gcc","glibc","make","sed"]
 type: source