Add soong_droiddoc_prebuilt.mk

Soong droiddoc modules were using soong_java_prebuilt.mk, but they
don't need any of the java logic from it, and it includes
base_rules.mk which was not included by droiddoc.mk.  Add
soong_droiddoc_prebuilt.mk that just installs the droiddoc
outputs without including base_rules.mk.

Fixes building docs modules in mm, mma, and m checkbuild.

Bug: 112388925
Test: m docs
Change-Id: I4f7262e2c3b1afbee44c1cc306330885b687a074
diff --git a/core/soong_droiddoc_prebuilt.mk b/core/soong_droiddoc_prebuilt.mk
new file mode 100644
index 0000000..510609b
--- /dev/null
+++ b/core/soong_droiddoc_prebuilt.mk
@@ -0,0 +1,25 @@
+# Droiddoc prebuilt coming from Soong.
+
+ifneq ($(LOCAL_MODULE_MAKEFILE),$(SOONG_ANDROID_MK))
+  $(call pretty-error,soong_droiddoc_prebuilt.mk may only be used from Soong)
+endif
+
+ifdef LOCAL_DROIDDOC_STUBS_SRCJAR
+$(eval $(call copy-one-file,$(LOCAL_DROIDDOC_STUBS_SRCJAR),$(OUT_DOCS)/$(LOCAL_MODULE)-stubs.srcjar))
+ALL_DOCS += $(OUT_DOCS)/$(LOCAL_MODULE)-stubs.srcjar
+
+.PHONY: $(LOCAL_MODULE)
+$(LOCAL_MODULE) : $(OUT_DOCS)/$(LOCAL_MODULE)-stubs.srcjar
+endif
+
+ifdef LOCAL_DROIDDOC_DOC_ZIP
+$(eval $(call copy-one-file,$(LOCAL_DROIDDOC_DOC_ZIP),$(OUT_DOCS)/$(LOCAL_MODULE)-docs.zip))
+$(call dist-for-goals,docs,$(OUT_DOCS)/$(LOCAL_MODULE)-docs.zip)
+
+.PHONY: $(LOCAL_MODULE)-docs.zip
+$(LOCAL_MODULE)-docs.zip : $(OUT_DOCS)/$(LOCAL_MODULE)-docs.zip
+endif
+
+ifdef LOCAL_DROIDDOC_ANNOTATIONS_ZIP
+$(eval $(call copy-one-file,$(LOCAL_DROIDDOC_ANNOTATIONS_ZIP),$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/$(LOCAL_MODULE)_annotations.zip))
+endif