AVR32: Enable networking

Implement MACB initialization for AVR32 and ATSTK1000, and turn
everything on, including the MACB driver.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/net/eth.c b/net/eth.c
index cca9392..6a34425 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -55,6 +55,7 @@
 extern int tsec_initialize(bd_t*, int, char *);
 extern int npe_initialize(bd_t *);
 extern int uec_initialize(int);
+extern int atstk1000_eth_initialize(bd_t *);
 
 static struct eth_device *eth_devices, *eth_current;
 
@@ -255,6 +256,9 @@
 #if defined(CONFIG_RTL8169)
 	rtl8169_initialize(bis);
 #endif
+#if defined(CONFIG_ATSTK1000)
+	atstk1000_eth_initialize(bis);
+#endif
 
 	if (!eth_devices) {
 		puts ("No ethernet found.\n");