--with-module: Fix failure to integrate them into some existing

module directories.

modules/config?.m4 needs to run after the modules/*/config?.m4.
Otherwise, modules.mk as created for --with-module gets wiped
out first.

PR: 40097


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1392150 13f79535-47bb-0310-9956-ffa450edef68