wl1271: Fix random MAC address setting

If reverting to a random MAC address, the driver would not update it to the
NVS file, and hence the firmware frame filtering would not work properly.

So update the randomized MAC address to the NVS image.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1271_main.c

@@ -562,6 +562,14 @@ static int wl1271_update_mac_addr(struct wl1271 *wl)
 		static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
 		memcpy(wl->mac_addr, nokia_oui, 3);
 		get_random_bytes(wl->mac_addr + 3, 3);
+
+		/* update this address to the NVS */
+		nvs_ptr[11] = wl->mac_addr[0];
+		nvs_ptr[10] = wl->mac_addr[1];
+		nvs_ptr[6] = wl->mac_addr[2];
+		nvs_ptr[5] = wl->mac_addr[3];
+		nvs_ptr[4] = wl->mac_addr[4];
+		nvs_ptr[3] = wl->mac_addr[5];
 	}
 
 	SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);