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/python-modules/patch/default.nix

@@ -0,0 +1,26 @@
+{ lib
+, buildPythonPackage
+, fetchzip
+}:
+
+buildPythonPackage rec {
+  version = "1.16";
+  pname = "patch";
+
+  src = fetchzip {
+    url = "mirror://pypi/p/${pname}/${pname}-${version}.zip";
+    sha256 = "1nj55hvyvzax4lxq7vkyfbw91pianzr3hp7ka7j12pgjxccac50g";
+    stripRoot = false;
+  };
+
+  # No tests included in archive
+  doCheck = false;
+
+  meta = with lib; {
+    description = "A library to parse and apply unified diffs";
+    homepage = "https://github.com/techtonik/python-patch/";
+    license = licenses.mit;
+    maintainers = [ maintainers.igsha ];
+  };
+
+}