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/applications/misc/termdown/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, fetchFromGitHub
+, buildPythonApplication
+, click
+, pyfiglet
+, python-dateutil
+, setuptools
+}:
+
+buildPythonApplication rec {
+  pname = "termdown";
+  version = "1.17.0";
+
+  src = fetchFromGitHub {
+    rev = version;
+    sha256 = "1sd9z5n2a4ir35832wgxs68vwav7wxhq39b5h8pq934mp8sl3v2k";
+    repo = "termdown";
+    owner = "trehn";
+  };
+
+  propagatedBuildInputs = [ python-dateutil click pyfiglet setuptools ];
+
+  meta = with lib; {
+    description = "Starts a countdown to or from TIMESPEC";
+    longDescription = "Countdown timer and stopwatch in your terminal";
+    homepage = "https://github.com/trehn/termdown";
+    license = licenses.gpl3;
+  };
+}