gpio: ts5500: Include the right header

This is a GPIO driver so include only <linux/gpio/driver.h>.

Cc: kernel@savoirfairelinux.com
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-ts5500.c

@@ -23,7 +23,7 @@
  */
 
 #include <linux/bitops.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/platform_data/gpio-ts5500.h>