Coreboot table handling: make debug message msg_pdbg

Corresponding to flashrom svn r1284.
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

cbtable.c

@@ -237,7 +237,7 @@ int coreboot_init(void)
 	}
 
 	if (!lb_table) {
-		msg_pinfo("No coreboot table found.\n");
+		msg_pdbg("No coreboot table found.\n");
 		return -1;
 	}