devicetree: Change scan_bus() prototype in device ops

The input/output value max is no longer used for tracking the
bus enumeration sequence, everything is handled in the context
of devicetree bus objects.

Change-Id: I545088bd8eaf205b1436d8c52d3bc7faf4cfb0f9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8541
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/include/device/pcix.h b/src/include/device/pcix.h
index 75be7aa..024c548 100644
--- a/src/include/device/pcix.h
+++ b/src/include/device/pcix.h
@@ -2,7 +2,8 @@
 #define DEVICE_PCIX_H
 /* (c) 2005 Linux Networx GPL see COPYING for details */
 
-unsigned int pcix_scan_bridge(device_t dev, unsigned int max);
+void pcix_scan_bridge(device_t dev);
+
 const char *pcix_speed(u16 sstatus);
 
 extern struct device_operations default_pcix_ops_bus;