Build Raven default CMF color wallpaper

Bug: 169538195
Test: Build pass; manual
Change-Id: I3b20252eed0bf1fa2d5b36ffe7008c9e14d1b657
diff --git a/device-raven.mk b/device-raven.mk
index 7410c30..936aa00 100644
--- a/device-raven.mk
+++ b/device-raven.mk
@@ -22,6 +22,7 @@
 $(call inherit-product-if-exists, vendor/google_devices/raven/proprietary/device-vendor.mk)
 $(call inherit-product-if-exists, vendor/google_devices/raviole/proprietary/raven/device-vendor-raven.mk)
 $(call inherit-product-if-exists, vendor/google/camera/devices/raviole/raven/device-vendor.mk)
+$(call inherit-product-if-exists, vendor/google_devices/raviole/proprietary/WallpapersRaven.mk)
 
 DEVICE_PACKAGE_OVERLAYS += device/google/raviole/raven/overlay