x86/platform: classmate-laptop: add WiFi media button

The WiFi media button on the Quanta NL3 reports keycodes 0x8b and 0x9b
to the platform driver. Add the mapping to support these codes.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Reviewed-by: Chris Chiu <chiu@endlessos.org>
Link: https://lore.kernel.org/r/20201208061111.29073-1-chiu@endlessos.orgSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/classmate-laptop.c

@@ -1023,6 +1023,8 @@ static int cmpc_keys_codes[] = {
 	KEY_CAMERA,
 	KEY_BACK,
 	KEY_FORWARD,
+	KEY_UNKNOWN,
+	KEY_WLAN, /* NL3: 0x8b (press), 0x9b (release) */
 	KEY_MAX
 };