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/pika-pool/default.nix

@@ -0,0 +1,27 @@
+{ lib, buildPythonPackage, fetchPypi
+, pika
+}:
+
+buildPythonPackage rec {
+  pname = "pika-pool";
+  version = "0.1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "f3985888cc2788cdbd293a68a8b5702a9c955db6f7b8b551aeac91e7f32da397";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py --replace "pika >=0.9,<0.11" "pika"
+  '';
+
+  # Tests require database connections
+  doCheck = false;
+
+  propagatedBuildInputs = [ pika ];
+  meta = with lib; {
+    homepage = "https://github.com/bninja/pika-pool";
+    license = licenses.bsdOriginal;
+    description = "Pools for pikas.";
+  };
+}