Add autoload cookit to php-find-system-php-ini-file command

Author: zonuexe

Diff for: php.el

@@ -427,6 +427,7 @@ When `DOCUMENT-ROOT' is NIL, the document root is obtained from `ROUTER-OR-DIR'.
         (pop-to-buffer buffer)
       buffer)))
 
+;;;###autoload
 (defun php-find-system-php-ini-file (&optional file)
   "Find php.ini FILE by `php --ini'."
   (interactive