torture: Add additional sftp-server path for BSD
torture: Add additional sftp-server path for BSD

Signed-off-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>

kedazo/libssh,nviennot/libssh,kedazo/libssh,nviennot/libssh,nviennot/libssh,nviennot/libssh,kedazo/libssh,kedazo/libssh