xilinx_zynq: Cleanup ssi_create_slave

With the recent m25p80 cleanup there is no need to use
ssi_create_slave_no_init() anymore. Just use ssi_create_slave().
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

hw/arm/xilinx_zynq.c

@@ -86,8 +86,7 @@ static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
         spi = (SSIBus *)qdev_get_child_bus(dev, bus_name);
 
         for (j = 0; j < num_ss; ++j) {
-            flash_dev = ssi_create_slave_no_init(spi, "n25q128");
-            qdev_init_nofail(flash_dev);
+            flash_dev = ssi_create_slave(spi, "n25q128");
 
             cs_line = qdev_get_gpio_in(flash_dev, 0);
             sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);