Fix a build problem with passing unsupported --enable-layout

args to apr and apr-util.  This broke binbuild.sh as well as
user-specified layout parameters.

PR:                                  18649
Original concept code submitted by:  Justin Erenkrantz
Mangled by:                          Jeff Trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@99188 13f79535-47bb-0310-9956-ffa450edef68