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/development/embedded/cc-tool/default.nix

@@ -0,0 +1,42 @@
+{ lib, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, boost
+, libusb1
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "cc-tool";
+  version = "unstable-2020-05-19";
+
+  src = fetchFromGitHub {
+    owner = "dashesy";
+    repo = pname;
+    rev = "19e707eafaaddee8b996ad27a9f3e1aafcb900d2";
+    hash = "sha256:1f78j498fdd36xbci57jkgh25gq14g3b6xmp76imdpar0jkpyljv";
+  };
+
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+  buildInputs = [ boost libusb1 ];
+
+  postPatch = ''
+    substituteInPlace udev/90-cc-debugger.rules \
+      --replace 'MODE="0666"' 'MODE="0660", GROUP="plugdev", TAG+="uaccess"'
+  '';
+
+  postInstall = ''
+    install -D udev/90-cc-debugger.rules $out/lib/udev/rules.d/90-cc-debugger.rules
+  '';
+
+  meta = with lib; {
+    description = "Command line tool for the Texas Instruments CC Debugger";
+    longDescription = ''
+      cc-tool provides support for Texas Instruments CC Debugger
+    '';
+    homepage = "https://github.com/dashesy/cc-tool";
+    license = licenses.gpl2;
+    platforms = with platforms; linux ++ darwin;
+    maintainers = [ maintainers.CRTified ];
+  };
+}