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/mysqlclient/default.nix

@@ -0,0 +1,29 @@
+{ lib, buildPythonPackage, fetchPypi, libmysqlclient }:
+
+buildPythonPackage rec {
+  pname = "mysqlclient";
+  version = "2.1.0";
+
+  nativeBuildInputs = [
+    libmysqlclient
+  ];
+
+  buildInputs = [
+    libmysqlclient
+  ];
+
+  # Tests need a MySQL database
+  doCheck = false;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "973235686f1b720536d417bf0a0d39b4ab3d5086b2b6ad5e6752393428c02b12";
+  };
+
+  meta = with lib; {
+    description = "Python interface to MySQL";
+    homepage = "https://github.com/PyMySQL/mysqlclient-python";
+    license = licenses.gpl1;
+    maintainers = with maintainers; [ y0no ];
+  };
+}