s/product-services/product_services/g

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

Bug: 112431447
Test: m
Change-Id: I1a87d7e040a8b1f91f973ac7d90d6360b5b54f71
Merged-In: I1a87d7e040a8b1f91f973ac7d90d6360b5b54f71
diff --git a/init/property_service.cpp b/init/property_service.cpp
index cd2f630..5c8b92a 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -692,7 +692,7 @@
         }
     }
     load_properties_from_file("/product/build.prop", NULL);
-    load_properties_from_file("/product-services/build.prop", NULL);
+    load_properties_from_file("/product_services/build.prop", NULL);
     load_properties_from_file("/odm/default.prop", NULL);
     load_properties_from_file("/vendor/default.prop", NULL);