Use .KATI_DEPFILE for files generated by aidl-java

Bug: 26839129
Change-Id: Ief611969b28aea3bb12097ba91d40f3e5010d647
diff --git a/core/java.mk b/core/java.mk
index a0ab4c5..4680c19 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -309,7 +309,8 @@
         $(AIDL) \
         $(aidl_preprocess_import)
 	$(transform-aidl-to-java)
--include $(aidl_java_sources:%.java=%.P)
+$(foreach java,$(aidl_java_sources), \
+    $(call include-depfile,$(java:%.java=%.P),$(java)))
 
 else
 aidl_java_sources :=