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/misc/opentx/default.nix

@@ -0,0 +1,49 @@
+{ lib, mkDerivation, fetchFromGitHub
+, cmake, gcc-arm-embedded, python3Packages
+, qtbase, qtmultimedia, qttranslations, SDL, gtest
+, dfu-util, avrdude
+}:
+
+mkDerivation rec {
+  pname = "opentx";
+  version = "2.3.15";
+
+  src = fetchFromGitHub {
+    owner = "opentx";
+    repo = "opentx";
+    rev = "release/${version}";
+    sha256 = "sha256-F3zykJhKuIpLQSTjn7mcdjEmgRAlwCZpkTaKQR9ve3g=";
+  };
+
+  nativeBuildInputs = [ cmake gcc-arm-embedded python3Packages.pillow ];
+
+  buildInputs = [ qtbase qtmultimedia qttranslations SDL ];
+
+  postPatch = ''
+    sed -i companion/src/burnconfigdialog.cpp \
+      -e 's|/usr/.*bin/dfu-util|${dfu-util}/bin/dfu-util|' \
+      -e 's|/usr/.*bin/avrdude|${avrdude}/bin/avrdude|'
+  '';
+
+  cmakeFlags = [
+    "-DGTEST_ROOT=${gtest.src}/googletest"
+    "-DQT_TRANSLATIONS_DIR=${qttranslations}/translations"
+    # XXX I would prefer to include these here, though we will need to file a bug upstream to get that changed.
+    #"-DDFU_UTIL_PATH=${dfu-util}/bin/dfu-util"
+    #"-DAVRDUDE_PATH=${avrdude}/bin/avrdude"
+  ];
+
+  meta = with lib; {
+    description = "OpenTX Companion transmitter support software";
+    longDescription = ''
+      OpenTX Companion is used for many different tasks like loading OpenTX
+      firmware to the radio, backing up model settings, editing settings and
+      running radio simulators.
+    '';
+    homepage = "https://www.open-tx.org/";
+    license = licenses.gpl2Only;
+    platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" ];
+    maintainers = with maintainers; [ elitak lopsided98 ];
+  };
+
+}