fix fs_cli build on solaris

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12160 d0543943-73ff-0310-b7d9-9358b9ac24b2

configure.in

@@ -259,7 +259,7 @@ case "$host" in
     ;;
     *-solaris2*)
         APR_ADDTO(SWITCH_AM_CFLAGS, -DPATH_MAX=2048)
-        APR_ADDTO(ESL_LDFLAGS, -lnsl)
+        APR_ADDTO(ESL_LDFLAGS, -lnsl -lsocket)
     ;;
     *bsd*)
         APR_ADDTO(SWITCH_AM_CFLAGS, -I/usr/local/include)