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/tools/filesystems/file-rename/default.nix

@@ -0,0 +1,30 @@
+{ lib, stdenv, fetchurl, perl, perlPackages }:
+
+perlPackages.buildPerlPackage {
+  pname = "File-Rename";
+  version = "0.20";
+
+  src = fetchurl {
+    url = "mirror://cpan/authors/id/R/RM/RMBARKER/File-Rename-0.20.tar.gz";
+    sha256 = "1cf6xx2hiy1xalp35fh8g73j67r0w0g66jpcbc6971x9jbm7bvjy";
+  };
+
+  # Fix an incorrect platform test that misidentifies Darwin as Windows
+  postPatch = ''
+    substituteInPlace Makefile.PL \
+      --replace '/win/i' '/MSWin32/'
+  '';
+
+  postFixup = ''
+    substituteInPlace $out/bin/rename \
+      --replace "#!${perl}/bin/perl" "#!${perl}/bin/perl -I $out/${perl.libPrefix}"
+  '';
+
+  doCheck = !stdenv.isDarwin;
+
+  meta = with lib; {
+    description = "Perl extension for renaming multiple files";
+    license = licenses.artistic1;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}