Moved initialization of FCC Ethernet controller to cpu_eth_init

Affected boards:
    Several MPC8xx boards
    Several MPC8260/MPC8272 boards
    Several MPC85xx boards

Removed initialization of the driver from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/cpu/mpc8xx/cpu.c b/cpu/mpc8xx/cpu.c
index 420eaed..de3d679 100644
--- a/cpu/mpc8xx/cpu.c
+++ b/cpu/mpc8xx/cpu.c
@@ -37,6 +37,7 @@
 #include <watchdog.h>
 #include <command.h>
 #include <mpc8xx.h>
+#include <netdev.h>
 #include <asm/cache.h>
 
 #if defined(CONFIG_OF_LIBFDT)
@@ -635,3 +636,15 @@
 # endif /* CONFIG_LWMON */
 }
 #endif /* CONFIG_WATCHDOG */
+
+/*
+ * Initializes on-chip ethernet controllers.
+ * to override, implement board_eth_init()
+ */
+int cpu_eth_init(bd_t *bis)
+{
+#if defined(FEC_ENET)
+	fec_initialize(bis);
+#endif
+	return 0;
+}