board: Xilinx: zynqmp: Define checkboard() function

Define checkboard() function for zynqMP

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

board/xilinx/zynqmp/zynqmp.c

@@ -130,3 +130,9 @@ int board_late_init(void)
 
 	return 0;
 }
+
+int checkboard(void)
+{
+	puts("Board:\tXilinx ZynqMP\n");
+	return 0;
+}