platform/x86: acer-wmi: add another KEY_WLAN keycode

Now that we have informed the firmware that the RF Button driver is
active, laptops such as the Acer TravelMate P238-M will generate
a WMI key event with code 0x86 when the Fn+F3 airplane mode key is
pressed.

Add this keycode to the table so that it is converted to an appropriate
input event.
Signed-off-by: NChris Chiu <chiu@endlessm.com>
Signed-off-by: NDaniel Drake <drake@endlessm.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/acer-wmi.c

@@ -128,6 +128,7 @@ static const struct key_entry acer_wmi_keymap[] __initconst = {
 	{KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
 	{KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
 	{KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
+	{KE_KEY, 0x86, {KEY_WLAN} },
 	{KE_END, 0}
 };