Fix hiddenapi-greylist.csv generation.

It was referring to a non-existant macro paramater resulting in empty
output.

Test: m out/target/common/obj/PACKAGING/hiddenapi-greylist.csv
& then check output.

(cherry picked from commit 8626c8ea95383056d5ad7b7e1acba2df78c9027a)

Change-Id: Ib48042ecca320c4d7c3a27959e41e5c55099b27a
Merged-In: Ib48042ecca320c4d7c3a27959e41e5c55099b27a
diff --git a/core/definitions.mk b/core/definitions.mk
index dbec0a3..a675080 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2704,9 +2704,9 @@
 $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): $(2)
 $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): PRIVATE_FLAGS_INPUTS := $$(PRIVATE_FLAGS_INPUTS) $(2)
 
-$(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): $(5)
+$(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): $(3)
 $(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): \
-    PRIVATE_METADATA_INPUTS := $$(PRIVATE_METADATA_INPUTS) $(5)
+    PRIVATE_METADATA_INPUTS := $$(PRIVATE_METADATA_INPUTS) $(3)
 
 endif
 endef