otter: Ship wlan_mac.bin symlink

* HW WiFi MAC Address is shown instead of the dummy one now.

Change-Id: Ib348da487b56e991729bad334e24734af841a30d
diff --git a/device.mk b/device.mk
index 8875def..bbf2dcd 100644
--- a/device.mk
+++ b/device.mk
@@ -386,7 +386,8 @@
 
 # WiFi firmware symlink
 PRODUCT_PACKAGES += \
-    firmware_WCNSS_qcom_cfg.ini_symlink
+    firmware_WCNSS_qcom_cfg.ini_symlink \
+    firmware_wlan_mac.bin_symlink
 
 # WiFi Display
 PRODUCT_BOOT_JARS += \