smbd: fix sharing access check for directories

smbd: fix sharing access check for directories

This was missing from commit 6140c3177a0330f42411618c3fca28930ea02a21 and causes
all opens of directories to be handled as stat opens, bypassing the sharemode
check.

Not adding a test at this time, as my (hopefully) soon to be merged Directory
Leases branch has a test which actually detected this problem.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15732

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Oct 29 12:44:49 UTC 2024 on atb-devel-224