Adds two more ethernet interface to 83xx

Added as a convenience for other platforms that uses MPC8360 (has 8 UCC).
Six eth interface is chosen because the platform I am using combines
UCC1&2 and UCC3&4 as 1000 Eth and the other four UCCs as 10/100 Eth.

Signed-off-by: Richard Retanubun <RichardRetanubun@RugggedCom.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

include/asm-ppc/u-boot.h

@@ -111,6 +111,12 @@ typedef struct bd_info {
 #ifdef CONFIG_HAS_ETH3
 	unsigned char   bi_enet3addr[6];
 #endif
+#ifdef CONFIG_HAS_ETH4
+	unsigned char   bi_enet4addr[6];
+#endif
+#ifdef CONFIG_HAS_ETH5
+	unsigned char   bi_enet5addr[6];
+#endif
 
 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
     defined(CONFIG_405EZ) || defined(CONFIG_440GX) || \