Fix non-Ada bootstrap failure reported by Ranjit Mathew

2005-03-10  Ranjit Mathew  <rmathew@hotmail.com>
* gcc_release (ADA_DIRS): Add "gnattools".


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96281 138bc75d-0d04-0410-961f-82ee72b054a4