s/PRODUCT-SERVICES/PRODUCT_SERVICES/g

Attempting to reduce the number of different spellings we have for
"product-services" in the codebase.

Bug: 112431447
Test: m
Change-Id: Iec531122297cf4b86ff8601732d4ab7ccf5c2183
diff --git a/core/Makefile b/core/Makefile
index 52e93b2..ee8303e 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -3214,7 +3214,7 @@
 ifdef BOARD_PRODUCT_SERVICESIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the product-services image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_PRODUCT_SERVICES),$(zip_root)/PRODUCT-SERVICES)
+		$(TARGET_OUT_PRODUCT_SERVICES),$(zip_root)/PRODUCT_SERVICES)
 endif
 ifdef BOARD_ODMIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the odm image