smb: server: reset smb_direct_port = SMB_DIRECT_PORT_INFINIBAND on init

smb: server: reset smb_direct_port = SMB_DIRECT_PORT_INFINIBAND on init

This allows testing with different devices (iwrap vs. non-iwarp) without
'rmmod ksmbd && modprobe ksmbd', but instead
'ksmbd.control -s && ksmbd.mountd' is enough.

In the long run we want to listen on iwarp and non-iwarp at the same time,
but requires more changes, most likely also in the rdma layer.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>