add mod_logfile to modules.conf.in since it was missing and crashed the rpm build

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6444 d0543943-73ff-0310-b7d9-9358b9ac24b2

build/modules.conf.in

 loggers/mod_console
 loggers/mod_syslog
+#loggers/mod_logfile
 applications/mod_commands
 applications/mod_conference
 applications/mod_dptools
@@ -58,4 +59,3 @@ say/mod_say_en
 #say/mod_say_fr
 #say/mod_say_it
 #say/mod_say_nl
-