bullhead: Add wifi HAL service to device.mk

Bug: 33460969
Test: Compiles
Change-Id: I473f00d5dcabbf84d2da7397aef69b1b688d28a9
diff --git a/device.mk b/device.mk
index 442fc82..5da4bb3 100644
--- a/device.mk
+++ b/device.mk
@@ -232,6 +232,7 @@
 
 # Wi-Fi
 PRODUCT_PACKAGES += \
+    android.hardware.wifi@1.0-service \
     libwpa_client \
     hostapd \
     wificond \