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/labgrid/default.nix

@@ -0,0 +1,77 @@
+{ ansicolors
+, attrs
+, autobahn
+, buildPythonPackage
+, fetchFromGitHub
+, jinja2
+, lib
+, mock
+, packaging
+, pexpect
+, psutil
+, pyserial
+, pytestCheckHook
+, pytest-dependency
+, pytest-mock
+, pyudev
+, pyusb
+, pyyaml
+, requests
+, setuptools-scm
+, xmodem
+}:
+
+buildPythonPackage rec {
+  pname = "labgrid";
+  version = "0.4.1";
+
+  src = fetchFromGitHub {
+    owner = "labgrid-project";
+    repo = "labgrid";
+    rev = "v${version}";
+    sha256 = "0ih04lh1q3dysps4vfmk2rhqqrsimssadsxvbxdsnim2yihrrw47";
+  };
+
+  patches = [
+    # Pyserial within Nixpkgs already includes the necessary fix, remove the
+    # pyserial version check from labgrid.
+    ./0001-serialdriver-remove-pyserial-version-check.patch
+  ];
+
+  nativeBuildInputs = [ setuptools-scm ];
+
+  propagatedBuildInputs = [
+    ansicolors
+    attrs
+    autobahn
+    jinja2
+    packaging
+    pexpect
+    pyserial
+    pyudev
+    pyusb
+    pyyaml
+    requests
+    xmodem
+  ];
+
+  preBuild = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${version}"
+  '';
+
+  checkInputs = [
+    mock
+    psutil
+    pytestCheckHook
+    pytest-mock
+    pytest-dependency
+  ];
+
+  meta = with lib; {
+    description = "Embedded control & testing library";
+    homepage = "https://labgrid.org";
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ emantor ];
+    platforms = with platforms; linux;
+  };
+}