ASoC: codec: rockchip_sai: Remove including of_gpio.h

of_gpio.h is deprecated. And there is no user in this driver
using API in of_gpio.h, so remove it.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://patch.msgid.link/20250704130906.1207134-1-peng.fan@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: MrVan

sound/soc/rockchip/rockchip_sai.c

@@ -9,7 +9,6 @@
 #include <linux/module.h>
 #include <linux/mfd/syscon.h>
 #include <linux/delay.h>
-#include <linux/of_gpio.h>
 #include <linux/of_device.h>
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>