gpio: vx855: fixed a typo

we had written "betwee" rather than "between".
Signed-off-by: NSachin agarwal <asachin591@gmail.com>
Link: https://lore.kernel.org/r/20200112143312.66048-1-sachinagarwal@sachins-MacBook-2.localSigned-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-vx855.c

@@ -71,7 +71,7 @@ static inline u_int32_t gpio_o_bit(int i)
 		return 1 << (i + 13);
 }
 
-/* Mapping betwee numeric GPIO ID and the actual GPIO hardware numbering:
+/* Mapping between numeric GPIO ID and the actual GPIO hardware numbering:
  * 0..13	GPI 0..13
  * 14..26	GPO 0..12
  * 27..41	GPIO 0..14