Move goldfish RRO to vendor partition

Change PRODUCT_PACKAGE_OVERLAYS to DEVICE_PACKAGE_OVERLAYS so that
goldfish RROs are not pulled into GSI.
This moves the goldfish configs to vendor partition, and since GSI
doesn't include a vendor, this means GSI won't include the goldfish
configs.

Bug: 174816040
Test: Presubmit
Change-Id: Ia3b4ca5fbf23278e55f1f200c9b96568d8d03606