net: phy: arrange headers in mdio_device.c alphabetically

Keeping the headers in alphabetical order is better for readability and
allows to easily see if given header is already included.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/mdio_device.c

@@ -6,6 +6,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
@@ -20,7 +21,6 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/unistd.h>
-#include <linux/delay.h>
 
 void mdio_device_free(struct mdio_device *mdiodev)
 {