cifs: open_cached_dir(): add FILE_READ_EA to desired access

Since smb2_query_eas() reads EA and uses cached directory,
open_cached_dir() should request FILE_READ_EA access.

Otherwise listxattr() and getxattr() will fail with EACCES
(0xc0000022 STATUS_ACCESS_DENIED SMB status).

Link: https://bugzilla.kernel.org/show_bug.cgi?id=218543


Cc: stable@vger.kernel.org
Signed-off-by: Eugene Korenevsky <ekorenevsky@astralinux.ru>
Signed-off-by: Steve French <stfrench@microsoft.com>