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/podman/dnsname.nix

@@ -0,0 +1,42 @@
+import ../make-test-python.nix (
+  { pkgs, lib, ... }:
+  let
+    inherit (pkgs) writeTextDir python3 curl;
+    webroot = writeTextDir "index.html" "<h1>Hi</h1>";
+  in
+  {
+    name = "podman-dnsname";
+    meta = {
+      maintainers = with lib.maintainers; [ roberth ] ++ lib.teams.podman.members;
+    };
+
+    nodes = {
+      podman = { pkgs, ... }: {
+        virtualisation.podman.enable = true;
+        virtualisation.podman.defaultNetwork.dnsname.enable = true;
+      };
+    };
+
+    testScript = ''
+      podman.wait_for_unit("sockets.target")
+
+      with subtest("DNS works"): # also tests inter-container tcp routing
+        podman.succeed("tar cv --files-from /dev/null | podman import - scratchimg")
+        podman.succeed(
+          "podman run -d --name=webserver -v /nix/store:/nix/store -v /run/current-system/sw/bin:/bin -w ${webroot} scratchimg ${python3}/bin/python -m http.server 8000"
+        )
+        podman.succeed("podman ps | grep webserver")
+        podman.succeed("""
+          for i in `seq 0 120`; do
+            podman run --rm --name=client -v /nix/store:/nix/store -v /run/current-system/sw/bin:/bin scratchimg ${curl}/bin/curl http://webserver:8000 >/dev/console \
+              && exit 0
+            sleep 0.5
+          done
+          exit 1
+        """)
+        podman.succeed("podman stop webserver")
+        podman.succeed("podman rm webserver")
+
+    '';
+  }
+)