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/amaranth-boards/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, amaranth
+, setuptools
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "amaranth-boards";
+  version = "unstable-2021-12-17";
+  # python setup.py --version
+  realVersion = "0.1.dev202+g${lib.substring 0 7 src.rev}";
+
+  src = fetchFromGitHub {
+    owner = "amaranth-lang";
+    repo = "amaranth-boards";
+    rev = "8e2615765e255144403431ca95c5cdf6c78eb638";
+    sha256 = "3EOG8SO5xBNevshXMRrxKWoJUbeaVi8ckbkmqd6Tw70=";
+  };
+
+  nativeBuildInputs = [ setuptools-scm ];
+  propagatedBuildInputs = [ setuptools amaranth ];
+
+  preBuild = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${realVersion}"
+  '';
+
+  # no tests
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Board definitions for Amaranth HDL";
+    homepage = "https://github.com/amaranth-lang/amaranth-boards";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ emily thoughtpolice ];
+  };
+}