Input: adp5589-keys - use the right header

This keyboard driver is implementing a GPIO driver, so it need
to include <linux/gpio/driver.h> and not the legacy <linux/gpio.h>
header.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20210816232707.485031-1-linus.walleij@linaro.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/adp5589-keys.c

@@ -18,7 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/input.h>
 #include <linux/i2c.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/slab.h>
 
 #include <linux/input/adp5589.h>