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/hocker-fetchdocker/default.nix

@@ -0,0 +1,16 @@
+import ../make-test-python.nix ({ pkgs, ...} : {
+  name = "test-hocker-fetchdocker";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ ixmatus ];
+    broken = true; # tries to download from registry-1.docker.io - how did this ever work?
+  };
+
+  nodes.machine = import ./machine.nix;
+
+  testScript = ''
+    start_all()
+
+    machine.wait_for_unit("sockets.target")
+    machine.wait_until_succeeds("docker run registry-1.docker.io/v2/library/hello-world:latest")
+  '';
+})

nixos/tests/hocker-fetchdocker/hello-world-container.nix

@@ -0,0 +1,19 @@
+{ fetchDockerConfig, fetchDockerLayer, fetchdocker }:
+fetchdocker rec {
+    name = "hello-world";
+    registry = "https://registry-1.docker.io/v2/";
+    repository = "library";
+    imageName = "hello-world";
+    tag = "latest";
+    imageConfig = fetchDockerConfig {
+      inherit tag registry repository imageName;
+      sha256 = "1ivbd23hyindkahzfw4kahgzi6ibzz2ablmgsz6340vc6qr1gagj";
+    };
+    imageLayers = let
+      layer0 = fetchDockerLayer {
+        inherit registry repository imageName;
+        layerDigest = "ca4f61b1923c10e9eb81228bd46bee1dfba02b9c7dac1844527a734752688ede";
+        sha256 = "1plfd194fwvsa921ib3xkhms1yqxxrmx92r2h7myj41wjaqn2kya";
+      };
+      in [ layer0 ];
+  }

nixos/tests/hocker-fetchdocker/machine.nix

@@ -0,0 +1,26 @@
+{ pkgs, ... }:
+{ nixpkgs.config.packageOverrides = pkgs': {
+    hello-world-container = pkgs'.callPackage ./hello-world-container.nix { };
+  };
+
+  virtualisation.docker = {
+    enable  = true;
+    package = pkgs.docker;
+  };
+
+  systemd.services.docker-load-fetchdocker-image = {
+    description = "Docker load hello-world-container";
+    wantedBy    = [ "multi-user.target" ];
+    wants       = [ "docker.service" ];
+    after       = [ "docker.service" ];
+
+    script = ''
+      ${pkgs.hello-world-container}/compositeImage.sh | ${pkgs.docker}/bin/docker load
+    '';
+
+    serviceConfig = {
+      Type = "oneshot";
+    };
+  };
+}
+