core/pci: Print 'PCI Summary' at PR_NOTICE

The actual entries of the PCI Summary are printed at PR_NOTICE so that
they go to the console during boot. The header however does not which
breaks my patented "grep 'PCI Summary' -A 100" technique for scraping
the summary out of a log file when that log is recorded from the SOL
console.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>

core/pci.c

@@ -1752,7 +1752,7 @@ static void __pci_init_slots(void)
 	if (platform.pci_probe_complete)
 		platform.pci_probe_complete();
 
-	prlog(PR_DEBUG, "PCI Summary:\n");
+	prlog(PR_NOTICE, "PCI Summary:\n");
 
 	for (i = 0; i < ARRAY_SIZE(phbs); i++) {
 		if (!phbs[i])