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/cocotb-bus/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "cocotb-bus";
+  version = "0.2.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a197aa4b0e0ad28469c8877b41b3fb2ec0206da9f491b9276d1578ce6dd8aa8d";
+  };
+
+  postPatch = ''
+    # remove circular dependency cocotb from setup.py
+    substituteInPlace setup.py --replace '"cocotb>=1.5.0.dev,<2.0"' ""
+  '';
+
+  # tests require cocotb, disable for now to avoid circular dependency
+  doCheck = false;
+
+  # checkPhase = ''
+  #   export PATH=$out/bin:$PATH
+  #   make test
+  # '';
+
+  meta = with lib; {
+    description = "Pre-packaged testbenching tools and reusable bus interfaces for cocotb";
+    homepage = "https://github.com/cocotb/cocotb-bus";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ prusnak ];
+  };
+}