docs: move pci-ids.txt to docs/specs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/pci-ids.txt b/docs/specs/pci-ids.txt
similarity index 100%
rename from pci-ids.txt
rename to docs/specs/pci-ids.txt