AT91: Replace AT91_BASE_EMAC by the board specific values.

AT91_BASE_EMAC is never used outside the board specific files,
so replace its usage by the board specific AT91xxx_BASE_EMAC.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index 0904827..ef99b8b 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -255,7 +255,7 @@
 {
 	int rc = 0;
 #ifdef CONFIG_MACB
-	rc = macb_eth_initialize(0, (void *)AT91_BASE_EMAC, 0x00);
+	rc = macb_eth_initialize(0, (void *)AT91SAM9260_BASE_EMAC, 0x00);
 #endif
 	return rc;
 }