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/misc/dvtm/dvtm.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, ncurses, customConfig ? null, pname, version, src, patches ? [] }:
+stdenv.mkDerivation {
+
+  inherit pname version src patches;
+
+  CFLAGS = lib.optionalString stdenv.isDarwin "-D_DARWIN_C_SOURCE";
+
+  postPatch = lib.optionalString (customConfig != null) ''
+    cp ${builtins.toFile "config.h" customConfig} ./config.h
+  '';
+
+  nativeBuildInputs = [ ncurses ];
+  buildInputs = [ ncurses ];
+
+  prePatch = ''
+    substituteInPlace Makefile \
+      --replace /usr/share/terminfo $out/share/terminfo
+  '';
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  meta = with lib; {
+    description = "Dynamic virtual terminal manager";
+    homepage = "http://www.brain-dump.org/projects/dvtm";
+    license = licenses.mit;
+    maintainers = [ maintainers.vrthra ];
+    platforms = platforms.unix;
+  };
+}