stagigg: wfx: replace magic number by HIF_ID_IS_INDICATION

Magic values are not recommended.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20220113085524.1110708-11-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/hif_rx.c

@@ -405,7 +405,7 @@ void wfx_handle_rx(struct wfx_dev *wdev, struct sk_buff *skb)
 			goto free;
 		}
 	}
-	if (hif_id & 0x80)
+	if (hif_id & HIF_ID_IS_INDICATION)
 		dev_err(wdev->dev, "unsupported HIF indication: ID %02x\n",
 			hif_id);
 	else