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/radio/btlejack/default.nix

@@ -0,0 +1,26 @@
+{ lib, buildPythonApplication, fetchFromGitHub, pyserial, halo }:
+
+buildPythonApplication rec {
+  pname = "btlejack";
+  version = "2.0.0";
+
+  src = fetchFromGitHub {
+    owner = "virtualabs";
+    repo = "btlejack";
+    rev = "v${version}";
+    sha256 = "1r17079kx7dvsrbmw5sgvz3vj5m3pn2543gxj2xmw4s0lcihy378";
+  };
+
+  postPatch = ''
+    sed -i "s|^.*'argparse',$||" setup.py
+  '';
+
+  propagatedBuildInputs = [ pyserial halo ];
+
+  meta = with lib; {
+    homepage = "https://github.com/virtualabs/btlejack";
+    description = "Bluetooth Low Energy Swiss-army knife";
+    license = licenses.mit;
+    maintainers = with maintainers; [ oxzi ];
+  };
+}