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/interpreters/lua-5/hooks/default.nix

@@ -0,0 +1,27 @@
+# Hooks for building lua packages.
+{ lua
+, lib
+, makeSetupHook
+, findutils
+, runCommand
+}:
+
+let
+  callPackage = lua.pkgs.callPackage;
+  luaInterpreter = lua.interpreter;
+in {
+
+  lua-setup-hook = LuaPathSearchPaths: LuaCPathSearchPaths:
+    let
+      hook = ./setup-hook.sh;
+    in runCommand "lua-setup-hook.sh" {
+      # hum doesn't seem to like caps !! BUG ?
+      luapathsearchpaths=lib.escapeShellArgs LuaPathSearchPaths;
+      luacpathsearchpaths=lib.escapeShellArgs LuaCPathSearchPaths;
+    } ''
+      cp ${hook} hook.sh
+      substituteAllInPlace hook.sh
+      mv hook.sh $out
+    '';
+
+}