raven: Include wireless_charger makefile

Change-Id: I74feb5b5bf192c7aa96fa51cb1baf4371bc207f6
diff --git a/omni_raven.mk b/omni_raven.mk
index 49b3ee3..ea13a50 100644
--- a/omni_raven.mk
+++ b/omni_raven.mk
@@ -39,6 +39,8 @@
 
 PRODUCT_RESTRICT_VENDOR_FILES := false
 
+PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := false
+
 # for bringup to disable secure adb - copy adbkey.pub from ~/.android
 #PRODUCT_ADB_KEYS := device/google/raviole/adbkey.pub
 #PRODUCT_PACKAGES += \
@@ -55,3 +57,5 @@
 PRODUCT_COPY_FILES += \
     device/google/raviole/product-sysconfig-stock.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/sysconfig/product-sysconfig-stock.xml
 
+# wireless_charger HAL service
+include device/google/gs-common/wireless_charger/wireless_charger.mk