Revert "s/PRODUCT-SERVICES/PRODUCT_SERVICES/g"

This reverts commit 77c778c040bf8717d6c5d4066b533b3d5ece8050.

Reason for revert: git-master break on 4960355

Change-Id: I2fd272c63ef496067f12852bcf98ffc1194c54bf
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 8750203..125dadf 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -218,7 +218,7 @@
 # A device can set up TARGET_COPY_OUT_PRODUCT_SERVICES to "product-services" in its
 # BoardConfig.mk.
 # We'll substitute with the real value after loading BoardConfig.mk.
-_product_services_path_placeholder := ||PRODUCT_SERVICES-PATH-PH||
+_product_services_path_placeholder := ||PRODUCT-SERVICES-PATH-PH||
 TARGET_COPY_OUT_PRODUCT_SERVICES := $(_product_services_path_placeholder)
 ###########################################