thunderbolt: Staticize nhi_ids

'nhi_ids' is local to this file.
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/thunderbolt/nhi.c

@@ -632,7 +632,7 @@ static const struct dev_pm_ops nhi_pm_ops = {
 	.restore_noirq = nhi_resume_noirq,
 };
 
-struct pci_device_id nhi_ids[] = {
+static struct pci_device_id nhi_ids[] = {
 	/*
 	 * We have to specify class, the TB bridges use the same device and
 	 * vendor (sub)id.