ASoC: simple-card-utils: Drop GPIO include

The generic card utilities are including the legacy GPIO header
<linux/gpio.h> but not using any symbols from it. Drop the
include from all files.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://msgid.link/r/20231214-gpio-descriptors-sound-misc-v1-3-e3004176bd8b@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/generic/audio-graph-card.c

@@ -9,7 +9,6 @@
 
 #include <linux/clk.h>
 #include <linux/device.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>

sound/soc/generic/audio-graph-card2.c

@@ -8,7 +8,6 @@
 // based on ${LINUX}/sound/soc/generic/audio-graph-card.c
 #include <linux/clk.h>
 #include <linux/device.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>

sound/soc/generic/simple-card-utils.c

@@ -5,7 +5,6 @@
 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 
 #include <linux/clk.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>