slaprunner: ssh fixups
A couple of fixups after recent dropbear -> openssh switch for slaprunner:
- fix git clone/push/fetch over ssh working
- add support for sftp/sshfs
/cc @Nicolas, @alain.takoudjou
A couple of fixups after recent dropbear -> openssh switch for slaprunner:
/cc @Nicolas, @alain.takoudjou