Always report that we support REPORT TARGET PORT GROUPS command.

Without clustering support we any way have only one group of permanently
active ports, but that gives us one more supported VMWare feature. ;)

Solaris' Comstar also reports it even when only one port is present.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@271606 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f