HID: input: Map unknown consumer page codes to KEY_UNKNOWN

Currently unknown consumer page codes are ignored, which means that they cannot
later be mapped from userspace using udev / hwdb. Map them to KEY_UNKNOWN, so
that userspace can remap them for keyboards which make up their own consumer
page codes.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-input.c

@@ -862,7 +862,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
 		case 0x28c: map_key_clear(KEY_SEND);		break;
 
-		default:    goto ignore;
+		default: map_key_clear(KEY_UNKNOWN);
 		}
 		break;