s3:script: Rename updatekeytab.sh ==> winbind_ctdb_updatekeytab.sh

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15689

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

diff --git a/source3/script/updatekeytab.sh b/source3/script/winbind_ctdb_updatekeytab.sh
similarity index 100%
rename from source3/script/updatekeytab.sh
rename to source3/script/winbind_ctdb_updatekeytab.sh