Defines the libssh dependencies


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275080 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Register the explicit (pthread) and implicit (for static) dependencies for
kerberos


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275082 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f