Correct the name of the nss_winbind module for FreeBSD by creating a symlink from...

Correct the name of the nss_winbind module for FreeBSD by creating a symlink from the FreeBSD required name to the built module.

Signed-off-by: Timur Bakeyev <timur@FreeBSD.org>
Reviewed-by: Andrew Bartlett <abartlett@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Autobuild-User(master): Richard Sharpe <sharpe@samba.org>
Autobuild-Date(master): Fri Mar  8 05:04:04 CET 2013 on sn-devel-104
(cherry picked from commit 11d128632357c9ae89d67aaf23c429fae83a1b29)

Fix bug #9704 - Fix nss_winbind name on FreeBSD.

Autobuild-User(v4-0-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-0-test): Tue Mar 12 10:43:32 CET 2013 on sn-devel-104