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/os-specific/darwin/apple-source-releases/Libc/825_40_1.nix

@@ -0,0 +1,13 @@
+{ appleDerivation', stdenvNoCC, ed, unifdef }:
+
+appleDerivation' stdenvNoCC {
+  nativeBuildInputs = [ ed unifdef ];
+
+  installPhase = ''
+    export SRCROOT=$PWD
+    export DSTROOT=$out
+    export PUBLIC_HEADERS_FOLDER_PATH=include
+    export PRIVATE_HEADERS_FOLDER_PATH=include
+    bash xcodescripts/headers.sh
+  '';
+}