hw/xtensa/esp32.c: Using the largest flash size by default.

In commit 0152246 4MB (or gd25q32) was
being hardcoded, as a result we could not use larger image size (> 4Mb).
This PR should fix it, by using the largest available (gd25q64).

Fixes: espressif#66
Signed-off-by: listout <[email protected]>

Author: listout

hw/xtensa/esp32.c

@@ -669,7 +669,7 @@ static void esp32_machine_init_spi_flash(Esp32SocState *ss, BlockBackend* blk)
     /* "main" flash chip is attached to SPI1, CS0 */
     DeviceState *spi_master = DEVICE(&ss->spi[1]);
     BusState* spi_bus = qdev_get_child_bus(spi_master, "spi");
-    DeviceState *flash_dev = qdev_new("gd25q32");
+    DeviceState *flash_dev = qdev_new("gd25q64");
     qdev_prop_set_drive(flash_dev, "drive", blk);
     qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
     qdev_connect_gpio_out_named(spi_master, SSI_GPIO_CS, 0,