symlink_outputs: Add .KATI_SYMLINK_OUTPUTS to build/make/core

Test: m
Bug: 160568334

Change-Id: Ie6fb4f16bb77845787d277857e17e6aac0a8c11a

core/Makefile

@@ -2384,6 +2384,7 @@ $1:
 	  exit 1; \
 	fi
 	ln -sfn $2 $1
+$1: .KATI_SYMLINK_OUTPUTS := $1
 )
 $1
 endef

core/definitions.mk

@@ -2610,6 +2610,7 @@ $(3): $(1)
 	@mkdir -p $(dir $$@)
 	@rm -rf $$@
 	$(hide) ln -sf $(2) $$@
+$(3): .KATI_SYMLINK_OUTPUTS := $(3)
 endef
 
 # Copy an apk to a target location while removing classes*.dex