mdio_bus: handle only single PHY reset GPIO

Commit 4c5e7a2c0501 ("dt-bindings: mdio: Clarify binding document")
declared that a MDIO reset GPIO property should have only a single GPIO
reference/specifier, however the supporting code was left intact, still
burdening the kernel with now apparently useless loops -- get rid of them.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 4142422..51bea65 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -226,10 +226,8 @@ struct mii_bus {
 
 	/* GPIO reset pulse width in microseconds */
 	int reset_delay_us;
-	/* Number of reset GPIOs */
-	int num_reset_gpios;
-	/* Array of RESET GPIO descriptors */
-	struct gpio_desc **reset_gpiod;
+	/* RESET GPIO descriptor pointer */
+	struct gpio_desc *reset_gpiod;
 };
 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)