Merge product_services into product by default

Noone is intended to use product_services for now, so make
product_services modules merge in product by default.

Bug: 113098451
Test: boot blueline
Test: boot walleye
Change-Id: Id13487e40afe4ae581fac027c8c075798c26c7e8
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 1426935..e62636e 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -443,7 +443,8 @@
 # Now we can substitute with the real value of TARGET_COPY_OUT_PRODUCT_SERVICES
 MERGE_PRODUCT_SERVICES_INTO_PRODUCT :=
 ifeq ($(TARGET_COPY_OUT_PRODUCT_SERVICES),$(_product_services_path_placeholder))
-  TARGET_COPY_OUT_PRODUCT_SERVICES := system/product_services
+  TARGET_COPY_OUT_PRODUCT_SERVICES := $(TARGET_COPY_OUT_PRODUCT)
+  MERGE_PRODUCT_SERVICES_INTO_PRODUCT := true
 else ifeq ($(TARGET_COPY_OUT_PRODUCT),$(TARGET_COPY_OUT_PRODUCT_SERVICES))
   MERGE_PRODUCT_SERVICES_INTO_PRODUCT := true
 else ifeq ($(filter product_services system/product_services,$(TARGET_COPY_OUT_PRODUCT_SERVICES)),)