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>

pkgs/applications/networking/cisco-packet-tracer/7.nix

@@ -0,0 +1,90 @@
+{ stdenv
+, lib
+, buildFHSUserEnvBubblewrap
+, callPackage
+, copyDesktopItems
+, dpkg
+, lndir
+, makeDesktopItem
+, makeWrapper
+, requireFile
+}:
+
+let
+  version = "7.3.1";
+
+  ptFiles = stdenv.mkDerivation {
+    name = "PacketTracer7drv";
+    inherit version;
+
+    dontUnpack = true;
+    src = requireFile {
+      name = "PacketTracer_${builtins.replaceStrings ["."] [""] version}_amd64.deb";
+      sha256 = "c39802d15dd61d00ba27fb8c116da45fd8562ab4b49996555ad66b88deace27f";
+      url = "https://www.netacad.com";
+    };
+
+    nativeBuildInputs = [ dpkg makeWrapper ];
+
+    installPhase = ''
+      dpkg-deb -x $src $out
+      makeWrapper "$out/opt/pt/bin/PacketTracer7" "$out/bin/packettracer7" \
+          --prefix LD_LIBRARY_PATH : "$out/opt/pt/bin"
+    '';
+  };
+
+  desktopItem = makeDesktopItem {
+    name = "cisco-pt7.desktop";
+    desktopName = "Cisco Packet Tracer 7";
+    icon = "${ptFiles}/opt/pt/art/app.png";
+    exec = "packettracer7 %f";
+    mimeTypes = [ "application/x-pkt" "application/x-pka" "application/x-pkz" ];
+  };
+
+  fhs = buildFHSUserEnvBubblewrap {
+    name = "packettracer7";
+    runScript = "${ptFiles}/bin/packettracer7";
+
+    targetPkgs = pkgs: with pkgs; [
+      alsa-lib
+      dbus
+      expat
+      fontconfig
+      glib
+      libglvnd
+      libpulseaudio
+      libudev0-shim
+      libxkbcommon
+      libxml2
+      libxslt
+      nspr
+      nss
+      xorg.libICE
+      xorg.libSM
+      xorg.libX11
+      xorg.libXScrnSaver
+    ];
+  };
+in stdenv.mkDerivation {
+  pname = "ciscoPacketTracer7";
+  inherit version;
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir $out
+    ${lndir}/bin/lndir -silent ${fhs} $out
+  '';
+
+  desktopItems = [ desktopItem ];
+
+  nativeBuildInputs = [ copyDesktopItems ];
+
+  meta = with lib; {
+    description = "Network simulation tool from Cisco";
+    homepage = "https://www.netacad.com/courses/packet-tracer";
+    license = licenses.unfree;
+    maintainers = with maintainers; [ lucasew ];
+    platforms = [ "x86_64-linux" ];
+  };
+}