fix path to mm's configure.in

fix aclocal.m4's dependencies
Submitted by:	Sascha Schumann <sascha@schumann.cx>
Reviewed by:	Jeff Trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85056 13f79535-47bb-0310-9956-ffa450edef68