Coqmktop and camlp4 : sequel to commit 16113

 Actually I don't see any reason to link q_utils and q_coqast
 in coqtop.byte specifically when using camlp4 (and not camlp5).

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16121 85f007b7-540e-0410-9357-904b9bb8a0f7