Move MPC512x_FEC driver to drivers/net

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/cpu/mpc512x/Makefile b/cpu/mpc512x/Makefile
index 8ba8ae8..e8f1060 100644
--- a/cpu/mpc512x/Makefile
+++ b/cpu/mpc512x/Makefile
@@ -25,7 +25,7 @@
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o
-COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o serial.o fec.o i2c.o iopin.o
+COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o serial.o i2c.o iopin.o
 
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))