net: stmmac: dwmac-rk: Remove unused of_gpio.h

of_gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.

Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Sebastian Reichel <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: andy-shev

drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c

@@ -12,10 +12,8 @@
 #include <linux/clk.h>
 #include <linux/phy.h>
 #include <linux/of_net.h>
-#include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/delay.h>