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/hockeypuck.nix

@@ -0,0 +1,63 @@
+import ./make-test-python.nix ({ lib, pkgs, ... }:
+let
+  gpgKeyring = (pkgs.runCommand "gpg-keyring" { buildInputs = [ pkgs.gnupg ]; } ''
+    mkdir -p $out
+    export GNUPGHOME=$out
+    cat > foo <<EOF
+      %echo Generating a basic OpenPGP key
+      %no-protection
+      Key-Type: DSA
+      Key-Length: 1024
+      Subkey-Type: ELG-E
+      Subkey-Length: 1024
+      Name-Real: Foo Example
+      Name-Email: foo@example.org
+      Expire-Date: 0
+      # Do a commit here, so that we can later print "done"
+      %commit
+      %echo done
+    EOF
+    gpg --batch --generate-key foo
+    rm $out/S.gpg-agent $out/S.gpg-agent.*
+  '');
+in {
+  name = "hockeypuck";
+  meta.maintainers = with lib.maintainers; [ etu ];
+
+  nodes.machine = { ... }: {
+    # Used for test
+    environment.systemPackages = [ pkgs.gnupg ];
+
+    services.hockeypuck.enable = true;
+
+    services.postgresql = {
+      enable = true;
+      ensureDatabases = [ "hockeypuck" ];
+      ensureUsers = [{
+        name = "hockeypuck";
+        ensurePermissions."DATABASE hockeypuck" = "ALL PRIVILEGES";
+      }];
+    };
+  };
+
+  testScript = ''
+    machine.wait_for_unit("hockeypuck.service")
+    machine.wait_for_open_port(11371)
+
+    response = machine.succeed("curl -vvv -s http://127.0.0.1:11371/")
+
+    assert "<title>OpenPGP Keyserver</title>" in response, "HTML title not found"
+
+    # Copy the keyring
+    machine.succeed("cp -R ${gpgKeyring} /tmp/GNUPGHOME")
+
+    # Extract our GPG key id
+    keyId = machine.succeed("GNUPGHOME=/tmp/GNUPGHOME gpg --list-keys | grep dsa1024 --after-context=1 | grep -v dsa1024").strip()
+
+    # Send the key to our local keyserver
+    machine.succeed("GNUPGHOME=/tmp/GNUPGHOME gpg --keyserver hkp://127.0.0.1:11371 --send-keys " + keyId)
+
+    # Recieve the key from our local keyserver to a separate directory
+    machine.succeed("GNUPGHOME=$(mktemp -d) gpg --keyserver hkp://127.0.0.1:11371 --recv-keys " + keyId)
+  '';
+})