Added light hal.

Bug: 32022100
Test: pass
Change-Id: Ice92153b94db0eb5fddbcdb165d9d932d326c23f
diff --git a/device.mk b/device.mk
index 1a9abfe..c79726d 100644
--- a/device.mk
+++ b/device.mk
@@ -145,9 +145,13 @@
 
 PRODUCT_PACKAGES += \
     power.dragon \
-    lights.dragon \
     sensors.dragon
 
+# Light HAL
+PRODUCT_PACKAGES += \
+    lights.dragon \
+    android.hardware.light@2.0-impl
+
 #TODO(dgreid) is this right?
 PRODUCT_PROPERTY_OVERRIDES := \
     wifi.interface=wlan0 \