Store AAR path from Soong for dist

Store the path to the AAR file from Soong so that it will be picked
up by dist if requested in TARGET_BUILD_APPS.

Test: m checkbuild
Change-Id: Ifeaf2b5ca3f405fbe79a966ceee9989a38d77f6e
diff --git a/core/soong_java_prebuilt.mk b/core/soong_java_prebuilt.mk
index 288a763..dd7d48b 100644
--- a/core/soong_java_prebuilt.mk
+++ b/core/soong_java_prebuilt.mk
@@ -128,6 +128,10 @@
   $(eval $(call copy-one-file,$(full_classes_jar),$(LOCAL_BUILT_MODULE)))
 endif  # LOCAL_SOONG_DEX_JAR
 
+ifdef LOCAL_SOONG_AAR
+  ALL_MODULES.$(LOCAL_MODULE).AAR := $(LOCAL_SOONG_AAR)
+endif
+
 javac-check : $(full_classes_jar)
 javac-check-$(LOCAL_MODULE) : $(full_classes_jar)
 .PHONY: javac-check-$(LOCAL_MODULE)