Propagate aconfig providers for more modules.

Bug: 308625757
Test: manual
Change-Id: Iaf6d45a4259f1c6c34476c34c431344283ae2830
diff --git a/android/filegroup.go b/android/filegroup.go
index 0aabb68..bc881ed 100644
--- a/android/filegroup.go
+++ b/android/filegroup.go
@@ -55,6 +55,9 @@
 	DefaultableModuleBase
 	properties fileGroupProperties
 	srcs       Paths
+
+	// Aconfig files for all transitive deps.  Also exposed via TransitiveDeclarationsInfo
+	mergedAconfigFiles map[string]Paths
 }
 
 var _ SourceFileProducer = (*fileGroup)(nil)
@@ -93,6 +96,7 @@
 		fg.srcs = PathsWithModuleSrcSubDir(ctx, fg.srcs, String(fg.properties.Path))
 	}
 	SetProvider(ctx, blueprint.SrcsFileProviderKey, blueprint.SrcsFileProviderData{SrcPaths: fg.srcs.Strings()})
+	CollectDependencyAconfigFiles(ctx, &fg.mergedAconfigFiles)
 }
 
 func (fg *fileGroup) Srcs() Paths {