fwget: pci_intel_video: do no log on no match

We should never "log" a statement on no match for a given device we
do not know about. We do not control the PCI ID assignments and thus
cannot predict if we would even support such a device.

This also triggers an invalid output in the installer.

Leave it as log_verbose for now.

Sponsored by: The FreeBSD Foundation
PR: 287639
Reviewed by: manu, emaste
Differential Revision: https://reviews.freebsd.org/D50916

(cherry picked from commit f1f71cc717aa672caf046ffe1f3dd77e622b8b35)