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/tools/graphics/yaxg/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub, makeWrapper,
+  maim, slop, ffmpeg, byzanz, libnotify, xdpyinfo }:
+
+stdenv.mkDerivation rec {
+  pname = "yaxg";
+  version = "unstable-2018-05-03";
+
+  src = fetchFromGitHub {
+    owner = "DanielFGray";
+    repo = "yaxg";
+    rev = "9d6af75da2ec25dba4b8d784e431064033d67ad2";
+    sha256 = "01p6ghp1vfrlnrm78bgbl9ppqwsdxh761g0qa172dpvsqg91l1p6";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ maim slop ffmpeg byzanz libnotify xdpyinfo ];
+
+  installPhase = ''
+    mkdir -p $out/bin/
+    mv yaxg $out/bin/
+    chmod +x $out/bin/yaxg
+    wrapProgram $out/bin/yaxg --prefix PATH : ${ lib.makeBinPath [ maim slop ffmpeg byzanz libnotify xdpyinfo ]}
+  '';
+
+  meta = with lib; {
+    inherit (src.meta) homepage;
+    description = "Yet Another X Grabber script";
+    longDescription = ''
+      Capture and record your screen with callbacks. Wraps maim, slop, ffmpeg,
+      and byzanz to enable still image, video, or gif recording of part or all
+      of your screen. Similar command-line interface to scrot but is overall
+      more flexible and less buggy.
+    '';
+    platforms = platforms.all;
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ neonfuz ];
+  };
+}