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>

nixos/tests/robustirc-bridge.nix

@@ -0,0 +1,29 @@
+import ./make-test-python.nix ({ pkgs, ... }:
+
+{
+  name = "robustirc-bridge";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ hax404 ];
+  };
+
+  nodes =
+    { bridge =
+      { services.robustirc-bridge = {
+          enable = true;
+          extraFlags = [
+            "-listen localhost:6667"
+            "-network example.com"
+          ];
+        };
+      };
+    };
+
+    testScript =
+    ''
+      start_all()
+
+      bridge.wait_for_unit("robustirc-bridge.service")
+      bridge.wait_for_open_port(1080)
+      bridge.wait_for_open_port(6667)
+    '';
+})