[pci] Update gating for lspci commands

It was reported that certain arches may create subdir structures under
/proc/bus/pci differently than others - most notably that the first
device subdir could be '0000:00' instead of just '00'.

Rather than chase these different layouts, update the gating check for
running `lspci` commands to being that /proc/bus/pci exists and it has
more than just the `devices` file present, as this file may be present
but empty when nothing else exists under `/proc/bus/pci`.

Resolves: #2138

Signed-off-by: Jake Hunsaker <jhunsake@redhat.com>

0 files changed, 0 insertions, 0 deletions