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/development/libraries/libjwt/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, lib, fetchFromGitHub, autoreconfHook, pkg-config, jansson, openssl }:
+
+stdenv.mkDerivation rec {
+  pname = "libjwt";
+  version = "1.13.1";
+
+  src = fetchFromGitHub {
+    owner = "benmcollins";
+    repo = "libjwt";
+    rev = "v${version}";
+    sha256 = "sha256-hS10Ecq0VVuYLDrBu4x+Y2mz6eeJV1SvnqttgbiQbi0=";
+  };
+
+  buildInputs = [ jansson openssl ];
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+
+  meta = with lib; {
+    homepage = "https://github.com/benmcollins/libjwt";
+    description = "JWT C Library";
+    license = licenses.mpl20;
+    maintainers = with maintainers; [ pnotequalnp ];
+    platforms = platforms.all;
+  };
+}