staging: wfx: fix wrong bytes order

The field wakeup_period_max from struct hif_mib_beacon_wake_up_period is
a u8. So, assigning it a __le16 produces a nasty bug on big-endian
architectures.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200512150414.267198-5-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/hif_tx_mib.c

@@ -32,7 +32,7 @@ int hif_set_beacon_wakeup_period(struct wfx_vif *wvif,
 	struct hif_mib_beacon_wake_up_period val = {
 		.wakeup_period_min = dtim_interval,
 		.receive_dtim = 0,
-		.wakeup_period_max = cpu_to_le16(listen_interval),
+		.wakeup_period_max = listen_interval,
 	};
 
 	if (dtim_interval > 0xFF || listen_interval > 0xFFFF)