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/dmtx-utils/default.nix

@@ -0,0 +1,35 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, pkg-config
+, libdmtx
+, imagemagick
+, Foundation
+}:
+
+stdenv.mkDerivation rec {
+  pname = "dmtx-utils";
+  version = "0.7.6";
+
+  src = fetchFromGitHub {
+    owner = "dmtx";
+    repo = "dmtx-utils";
+    rev = "v${version}";
+    sha256 = "06m3qncqdlcnmw83n95yrx2alaq6bld320ax26z4ndnla41yk0p4";
+  };
+
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+
+  buildInputs = [ libdmtx imagemagick ]
+    ++ lib.optional stdenv.isDarwin Foundation;
+
+  meta = {
+    description = "Data matrix command-line utilities";
+    homepage = "https://github.com/dmtx/dmtx-utils";
+    changelog = "https://github.com/dmtx/dmtx-utils/blob/v${version}/ChangeLog";
+    license = lib.licenses.lgpl2;
+    maintainers = [ lib.maintainers.raskin ];
+    platforms = lib.platforms.unix;
+  };
+}