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/keepalive/default.nix

@@ -0,0 +1,25 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "keepalive";
+  version = "0.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "3c6b96f9062a5a76022f0c9d41e9ef5552d80b1cadd4fccc1bf8f183ba1d1ec1";
+  };
+
+  # No tests included
+  doCheck = false;
+
+  meta = with lib; {
+    description = "An HTTP handler for `urllib2` that supports HTTP 1.1 and keepalive";
+    homepage = "https://github.com/wikier/keepalive";
+    license = licenses.asl20;
+    broken = true; # uses use_2to3, which is no longer supported for setuptools>=58
+  };
+
+}