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/dateutils/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchurl, autoreconfHook, tzdata, fetchpatch }:
+
+stdenv.mkDerivation rec {
+  version = "0.4.9";
+  pname = "dateutils";
+
+  src = fetchurl {
+    url = "https://bitbucket.org/hroptatyr/dateutils/downloads/${pname}-${version}.tar.xz";
+    sha256 = "1hy96h9imxdbg9y7305mgv4grr6x4qic9xy3vhgh15lvjkcmc0kr";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+  buildInputs = [ tzdata ]; # needed for datezone
+  enableParallelBuilding = true;
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "A bunch of tools that revolve around fiddling with dates and times in the command line";
+    homepage = "http://www.fresse.org/dateutils/";
+    license = licenses.bsd3;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.paperdigits ];
+  };
+}