Build everything in PRODUCT_HOST_PACKAGES

This should only add extra host packages that were in
PRODUCT_HOST_PACKAGES and not PRODUCT_PACKAGES.

That shouldn't be very many things -- user builds will build a few more
host tools that used to be in PRODUCT_PACKAGES_DEBUG, etc.

Test: treehugger
Change-Id: I6768b76db74ea049de90eef326d1e314eb4ef848

core/main.mk

@@ -1261,6 +1261,7 @@ endif
 modules_to_install := $(sort \
     $(ALL_DEFAULT_INSTALLED_MODULES) \
     $(product_target_FILES) \
+    $(product_host_FILES) \
     $(call get-tagged-modules,$(tags_to_install)) \
     $(CUSTOM_MODULES) \
   )