HyperTransport: Use subordinate property to track chain enumeration

For amdfam10, (ht_c_index > 3) never evaluates true as the code
already has a return for this case above.

Change-Id: Ie90941671e1b2b4f42e2b1b0641ca59334fcf0f1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8688
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/device/hypertransport.c

@@ -501,8 +501,8 @@ static unsigned int hypertransport_scan_chain_x(struct bus *bus,
 					 ht_unitid_base, offset_unitid);
 
 	/* Now that nothing is overlapping it is safe to scan the children. */
-	max = pci_scan_bus(bus, 0x00, ((next_unitid - 1) << 3) | 7, max);
-	return max;
+	bus->subordinate = pci_scan_bus(bus, 0x00, ((next_unitid - 1) << 3) | 7, bus->secondary);
+	return bus->subordinate;
 }
 
 unsigned int ht_scan_bridge(struct device *dev, unsigned int max)