zynq-common: Enable phy driver for Xilinx PCS/PMA core

Add support of Xilinx PCS/PMA core phy for Zynq
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

include/configs/zynq-common.h

@@ -47,6 +47,7 @@
 # define CONFIG_SYS_FAULT_ECHO_LINK_DOWN
 # define CONFIG_PHY_MARVELL
 # define CONFIG_PHY_REALTEK
+# define CONFIG_PHY_XILINX
 # define CONFIG_BOOTP_SERVERIP
 # define CONFIG_BOOTP_BOOTPATH
 # define CONFIG_BOOTP_GATEWAY