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/pymysqlsa/default.nix

@@ -0,0 +1,26 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pymysql
+, sqlalchemy
+}:
+
+buildPythonPackage rec {
+  pname = "pymysql-sa";
+  version = "1.0";
+
+  src = fetchPypi {
+    inherit version;
+    pname = "pymysql_sa";
+    sha256 = "a2676bce514a29b2d6ab418812259b0c2f7564150ac53455420a20bd7935314a";
+  };
+
+  propagatedBuildInputs = [ pymysql sqlalchemy ];
+
+  meta = with lib; {
+    description = "PyMySQL dialect for SQL Alchemy";
+    homepage = "https://pypi.python.org/pypi/pymysql_sa";
+    license = licenses.mit;
+  };
+
+}