linux-wandboard

Input: gpio-keys - optimize interrupt handler

By passing a gpio_button_data structure to the handler instead of the
whole platform_device the search for the right button can go away.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>