virt-host-validate-bhyve.c: Reintroduce @ret to virHostValidateBhyve()
virt-host-validate-bhyve.c: Reintroduce @ret to virHostValidateBhyve()

This partially reverts fe65e9c8b50c9029cba0e8c386162d293cd443d2.

In the referenced commit I removed @ret from
virHostValidateBhyve() thinking it wasn't used when in fact it is
- it's usage is hidden under MODULE_STATUS_WARN(). Reintroduce
the variable back.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

zippy2/libvirt,jfehlig/libvirt,nertpinx/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,libvirt/libvirt,crobinso/libvirt,olafhering/libvirt,libvirt/libvirt,jardasgit/libvirt,crobinso/libvirt,libvirt/libvirt,jardasgit/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,olafhering/libvirt,olafhering/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,libvirt/libvirt,crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,nertpinx/libvirt,jardasgit/libvirt,crobinso/libvirt,zippy2/libvirt,nertpinx/libvirt,olafhering/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,zippy2/libvirt,jfehlig/libvirt