uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/libraries/ijs/default.nix

@@ -0,0 +1,24 @@
+{ lib, stdenv, autoreconfHook, ghostscript }:
+
+stdenv.mkDerivation {
+  pname = "ijs";
+  inherit (ghostscript) version src;
+
+  postPatch = "cd ijs";
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  configureFlags = [ "--enable-shared" ];
+
+  meta = with lib; {
+    homepage = "https://www.openprinting.org/download/ijs/";
+    description = "Raster printer driver architecture";
+
+    license = licenses.gpl3Plus;
+
+    platforms = platforms.all;
+    maintainers = [ maintainers.abbradar ];
+  };
+}