[PATCH] sh: mach-x3proto: Add missing #include <linux/gpio/driver.h>

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

shx3_defconfig:

    arch/sh/boards/mach-x3proto/setup.c: In function ‘x3proto_devices_setup’:
    arch/sh/boards/mach-x3proto/setup.c:246:62: error: invalid use of undefined type ‘struct gpio_chip’
      246 |                 baseboard_buttons[i].gpio = x3proto_gpio_chip.base + i;
	  |                                                              ^

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Link: https://lore.kernel.org/r/CA+G9fYs7suzGsEDK40G0pzxXyR1o2V4Pn-oy1owTsTWRVEVHog@xxxxxxxxxxxxxx
Fixes: 21d9526d13b5467b ("gpiolib: Make the legacy <linux/gpio.h> consumer-only")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
 arch/sh/boards/mach-x3proto/setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/boards/mach-x3proto/setup.c b/arch/sh/boards/mach-x3proto/setup.c
index 95b85f2e13dda75b..7f39fca95e57a109 100644
--- a/arch/sh/boards/mach-x3proto/setup.c
+++ b/arch/sh/boards/mach-x3proto/setup.c
@@ -17,6 +17,7 @@
 #include <linux/usb/r8a66597.h>
 #include <linux/usb/m66592.h>
 #include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/gpio_keys.h>
 #include <mach/ilsel.h>
 #include <mach/hardware.h>
-- 
2.34.1