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/networking/netmask/default.nix

@@ -0,0 +1,24 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, texinfo }:
+
+stdenv.mkDerivation rec {
+  pname = "netmask";
+  version = "2.4.4";
+
+  src = fetchFromGitHub {
+    owner = "tlby";
+    repo = "netmask";
+    rev = "v${version}";
+    sha256 = "1269bmdvl534wr0bamd7cqbnr76pnb14yn8ly4qsfg29kh7hrds6";
+  };
+
+  buildInputs = [ texinfo ];
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = with lib; {
+    homepage = "https://github.com/tlby/netmask";
+    description = "An IP address formatting tool ";
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.jensbin ];
+  };
+}