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/idris-modules/with-packages.nix

@@ -0,0 +1,20 @@
+# Build a version of idris with a set of packages visible
+# packages: The packages visible to idris
+{ lib, idris, symlinkJoin, makeWrapper }: packages:
+
+let paths = lib.closePropagation packages;
+in
+lib.appendToName "with-packages" (symlinkJoin {
+
+  inherit (idris) name;
+
+  paths = paths ++ [idris] ;
+
+  buildInputs = [ makeWrapper ];
+
+  postBuild = ''
+    wrapProgram $out/bin/idris \
+      --set IDRIS_LIBRARY_PATH $out/libs
+  '';
+
+})