[enhancement] enable port selection for ssh connection

[salutuj]

I started playing with buildroot to create some applications for my MIPS router.
I tried to follow the tutorial when I had to stopwhen it came to running app on remote system.
I have two configurations of my ssh daemon for internal network and for the world outside which uses different port than the standard 22.

Would you add an extra field for port in the SSH Only connection dialog? Of course I know that I can easily solve it by unblocking this port, however that is just another use-case which might be worth considering making a little enhancement for that.

Thanks and regards
Pawel Niewiadomski