Revert "Update lua plugin to 5.2.3"

FILE typedef to *void needs more work to not break sim and
application builds. I checked only a few random native builds
unfortunately. Sorry for inconvenience.

apps/plugins/lua/rocklib_aux.pl

@@ -133,7 +133,6 @@ print <<EOF
 
 #define _ROCKCONF_H_ /* We don't need strcmp() etc. wrappers */
 #include "lua.h"
-#include "rocklib.h"
 #include "lauxlib.h"
 #include "plugin.h"
 
@@ -208,7 +207,7 @@ sub in_string
 sub in_bool
 {
     my ($name, $type, $pos) = @_;
-    return sprintf("\tbool %s = rli_checkboolean(L, %d);\n", $name, $pos)
+    return sprintf("\tbool %s = luaL_checkboolean(L, %d);\n", $name, $pos)
 }
 
 sub out_void