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/setuptools-scm/tests.nix

@@ -0,0 +1,32 @@
+{ buildPythonPackage
+, setuptools-scm
+, pytestCheckHook
+, git
+, mercurial
+, pip
+, virtualenv
+}:
+
+buildPythonPackage rec {
+  pname = "setuptools-scm-tests";
+  inherit (setuptools-scm) version;
+
+  src = setuptools-scm.src;
+
+  dontBuild = true;
+  dontInstall = true;
+
+  checkInputs = [
+    pytestCheckHook
+    setuptools-scm
+    pip
+    virtualenv
+    git
+    mercurial
+  ];
+
+  disabledTests = [
+    # network access
+    "test_pip_download"
+  ];
+}