In Apple's DerivedSources.make, XLinkNames are built all the time.
Change our Android.derived.mk to do the same, instead of only
building when SVG is enabled.
Change-Id: I69d903788e4416e2140068f2aa907d65b336ce68
# XLink attribute names
-ifeq ($(ENABLE_SVG), true)
GEN:= $(intermediates)/XLinkNames.cpp
$(GEN): PRIVATE_PATH := $(LOCAL_PATH)
$(GEN): PRIVATE_CUSTOM_TOOL = perl -I $(PRIVATE_PATH)/bindings/scripts $< --attrs $(xlink_attrs) --output $(dir $@)
$(GEN): $(LOCAL_PATH)/dom/make_names.pl $(xlink_attrs)
$(transform-generated-source)
LOCAL_GENERATED_SOURCES += $(GEN)
-endif