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/matrix-common/default.nix

@@ -0,0 +1,27 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchPypi
+, attrs
+}:
+
+buildPythonPackage rec {
+  pname = "matrix_common";
+  version = "1.1.0";
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-qCOHSK/Cs3B5gYNn/tUVbzVXcbB8j/ChdZNPR+D/MnY=";
+  };
+
+  propagatedBuildInputs = [ attrs ];
+  pythonImportsCheck = [ "matrix_common" ];
+
+  meta = with lib; {
+    description = "Common utilities for Synapse, Sydent and Sygnal";
+    homepage = "https://github.com/matrix-org/matrix-python-common";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ sumnerevans ];
+  };
+}