s3: libsmb: Cleanup - Make ipstr_list_make() talloc rather than malloc.

s3: libsmb: Cleanup - Make ipstr_list_make() talloc rather than malloc.

Remove the excessive and unneeded ipstr_list_add() function,
fold it into ipstr_list_make() to make it much clearer what
we're doing.

The only use of MALLOC now is in ipstr_list_parse() returned
by namecache_fetch(). We need to fix the caller before
we can move that to talloc. As that is used inside internal_resolve_name()
which is designed to return a MALLOC'ed ip list from all
name resolution mechanisms leave that fix for another day.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jul 16 08:16:31 UTC 2020 on sn-devel-184