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/libais/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildPythonPackage, fetchPypi,
+  six, pytest, pytest-runner, pytest-cov, coverage
+}:
+buildPythonPackage rec {
+  pname = "libais";
+  version = "0.17";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0pyka09h8nb0vlzh14npq4nxmzg1046lr3klgn97dsf5k0iflapb";
+  };
+
+  # data files missing
+  doCheck = false;
+
+  checkInputs = [ pytest pytest-runner pytest-cov coverage ];
+  propagatedBuildInputs = [ six ];
+
+  meta = with lib; {
+    homepage = "https://github.com/schwehr/libais";
+    description = "Library for decoding maritime Automatic Identification System messages";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+  };
+}