fec_phy: add new PHY file

Added common file for both fec and fec_uio driver.
fec_phy.h and fec_phy.c have phy related API's.
Now the PHY functions can be used in both FEC and
FEC_UIO driver independently.

Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>

drivers/net/ethernet/freescale/Makefile

@@ -3,8 +3,10 @@
 # Makefile for the Freescale network device drivers.
 #
 
+common-objs := fec_phy.o
+
 obj-$(CONFIG_FEC) += fec.o
-fec-objs :=fec_main.o fec_ptp.o
+fec-objs :=fec_main.o fec_ptp.o $(common-objs)
 
 obj-$(CONFIG_FEC_MPC52xx) += fec_mpc52xx.o
 ifeq ($(CONFIG_FEC_MPC52xx_MDIO),y)