minia: Add all platforms and enable parallel building

pkgs/minia.nix

@@ -20,6 +20,9 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A short-read assembler based on a de Bruijn graph, capable of assembling a human genome on a desktop computer in a day.";
     homepage = https://github.com/GATB/minia;
+    platforms = platforms.all;
     license = licenses.gpl3;
   };
+
+  enableParallelBuilding = true;
 }