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/containers-nested.nix

@@ -0,0 +1,30 @@
+# Test for NixOS' container nesting.
+
+import ./make-test-python.nix ({ pkgs, ... }: {
+  name = "nested";
+
+  meta = with pkgs.lib.maintainers; { maintainers = [ sorki ]; };
+
+  nodes.machine = { lib, ... }:
+    let
+      makeNested = subConf: {
+        containers.nested = {
+          autoStart = true;
+          privateNetwork = true;
+          config = subConf;
+        };
+      };
+    in makeNested (makeNested { });
+
+  testScript = ''
+    machine.start()
+    machine.wait_for_unit("container@nested.service")
+    machine.succeed("systemd-run --pty --machine=nested -- machinectl list | grep nested")
+    print(
+        machine.succeed(
+            "systemd-run --pty --machine=nested -- systemd-run --pty --machine=nested -- systemctl status"
+        )
+    )
+  '';
+})
+