Move some printf()s from cpu_probe_base_features() to identifycpu().
Those printf()s are used for "identify" command but cpu_probe_base_features()
is shared by ucodeupdate_check(), too. This change fixes a problem that
the "ucode" command print extra output.
Add BPF_MOD tests. Plus one tiny change.
Add BPF_MOD tests. Plus one tiny change.