smb: client: make use of smbdirect.ko

smb: client: make use of smbdirect.ko

This means we no longer inline the common smbdirect
.c files and use the exported functions from the
module instead.

Note the connection specific logging is still
redirect to cifs.ko functions via
smbdirect_socket_set_logging().

We still don't use real socket layer,
but we're very close...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: David Howells <dhowells@redhat.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>