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/faad2/default.nix

@@ -0,0 +1,30 @@
+{lib, stdenv, fetchFromGitHub, autoreconfHook
+, drmSupport ? false # Digital Radio Mondiale
+}:
+
+with lib;
+stdenv.mkDerivation rec {
+  pname = "faad2";
+  version = "2.10.0";
+
+  src = fetchFromGitHub {
+    owner = "knik0";
+    repo = "faad2";
+    rev = builtins.replaceStrings [ "." ] [ "_" ] version;
+    sha256 = "0q52kdd95ls6ihzyspx176wg9x22425v5qsknrmrjq30q25qmmlg";
+  };
+
+  configureFlags = []
+    ++ optional drmSupport "--with-drm";
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = {
+    description = "An open source MPEG-4 and MPEG-2 AAC decoder";
+    homepage = "https://sourceforge.net/projects/faac/";
+    license     = licenses.gpl2Plus;
+    maintainers = with maintainers; [ codyopel ];
+    mainProgram = "faad";
+    platforms   = platforms.all;
+  };
+}