HID: roccat: fix wrong attr size for koneplus tcu

More thorough testing revealed a typo in last koneplus cleanups.
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-roccat-koneplus.h

@@ -24,7 +24,7 @@ enum {
 	KONEPLUS_SIZE_PROFILE_BUTTONS = 0x4d,
 	KONEPLUS_SIZE_SENSOR = 0x06,
 	KONEPLUS_SIZE_TALK = 0x10,
-	KONEPLUS_SIZE_TCU = 0x03,
+	KONEPLUS_SIZE_TCU = 0x04,
 	KONEPLUS_SIZE_TCU_IMAGE = 0x0404,
 };