[Ovmsdev] ssh documentation

Currently the documentation says:

 https://docs.openvehicles.com/en/latest/userguide/console.html

 With OpenSSH version 6.6 (or later), cipher aes128-cbc has been
 disabled by default and needs to be enabled manually

but this does not appear to be needed with the version of wolfssh we're currently using. My FreeBSD desktop has OpenSSH 7.9p1 in the base system and "/usr/bin/ssh -F /dev/null ovms-z.alameda.xse.com" (i.e. no config file) works fine.

Meanwhile, OpenSSH 8.8 (which I've been using via the ports system since October) disables ssh-rsa by default so I had to add something simlar to:

 Host ovmsname.local
     HostkeyAlgorithms +ssh-rsa
     PubkeyAcceptedAlgorithms +ssh-rsa

to my .ssh/config. If someone would confirm my understanding of the current state is correct, I'd be happy to generate a PR to update the doc.

	Craig