ARM64: zynqmp: Move memory setup to board file

Setup memory size for ep108 in ep108 config file.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/include/configs/xilinx_zynqmp_ep.h b/include/configs/xilinx_zynqmp_ep.h
index 23a69db..0204d2c 100644
--- a/include/configs/xilinx_zynqmp_ep.h
+++ b/include/configs/xilinx_zynqmp_ep.h
@@ -23,6 +23,11 @@
 #define CONFIG_ZYNQMP_XHCI_LIST {ZYNQMP_USB0_XHCI_BASEADDR, \
 				 ZYNQMP_USB1_XHCI_BASEADDR}
 
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE		0
+#define CONFIG_SYS_SDRAM_SIZE		0x40000000
+
 #include <configs/xilinx_zynqmp.h>
 
 #endif /* __CONFIG_ZYNQMP_EP_H */