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/agate-dbf/default.nix

@@ -0,0 +1,20 @@
+{ lib, fetchPypi, buildPythonPackage, agate, dbf, dbfread }:
+
+buildPythonPackage rec {
+    pname = "agate-dbf";
+    version = "0.2.2";
+
+    propagatedBuildInputs = [ agate dbf dbfread ];
+
+    src = fetchPypi {
+      inherit pname version;
+      sha256 = "589682b78c5c03f2dc8511e6e3edb659fb7336cd118e248896bb0b44c2f1917b";
+    };
+
+    meta = with lib; {
+      description = "Adds read support for dbf files to agate";
+      homepage    = "https://github.com/wireservice/agate-dbf";
+      license     = with licenses; [ mit ];
+      maintainers = with maintainers; [ vrthra ];
+    };
+}