[SMB3] fix reconnect so it can handle cases where server is doing password rotation

[Paulo Alcantara]

Steve French <smfrench at gmail.com> writes:

> An alternative would have been to use the kernel keyring for this but the
> processes doing the reconnect does not have access to the keyring but does
> have access to the ses structure.

Are sure?  For example, DNS resolver and kerberos auth require keyring
and are used over reconnect.