Track transitive usage of aconfig flags and add LOCAL_ACONFIG_FILES to Android-<product>.mk

Bug: 283910439
Test: m nothing (runs soong tests)
Change-Id: I59f9bef7b7c502565d531a5685c002a177e0a77c
diff --git a/java/aar.go b/java/aar.go
index c9e08e2..a682e3a 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -988,6 +988,7 @@
 		TransitiveStaticLibsHeaderJars: a.transitiveStaticLibsHeaderJars,
 		ImplementationAndResourcesJars: android.PathsIfNonNil(a.classpathFile),
 		ImplementationJars:             android.PathsIfNonNil(a.classpathFile),
+		// TransitiveAconfigFiles: // TODO(b/289117800): LOCAL_ACONFIG_FILES for prebuilts
 	})
 
 	if proptools.Bool(a.properties.Extract_jni) {