move CollectDependencyAconfigFiles to android

This needs to be called by some modules in android.

Bug: 308625757
Test: manual
Change-Id: I389fcfd88a3f4bd85a9218fdd4dd66d8a239bb67
diff --git a/java/app.go b/java/app.go
index 7f0303a..8b28dac 100755
--- a/java/app.go
+++ b/java/app.go
@@ -22,7 +22,6 @@
 	"path/filepath"
 	"strings"
 
-	"android/soong/aconfig"
 	"android/soong/testing"
 
 	"github.com/google/blueprint"
@@ -509,7 +508,7 @@
 
 	var aconfigTextFilePaths android.Paths
 	ctx.VisitDirectDepsWithTag(aconfigDeclarationTag, func(dep android.Module) {
-		if provider, ok := android.OtherModuleProvider(ctx, dep, aconfig.DeclarationsProviderKey); ok {
+		if provider, ok := android.OtherModuleProvider(ctx, dep, android.AconfigDeclarationsProviderKey); ok {
 			aconfigTextFilePaths = append(aconfigTextFilePaths, provider.IntermediateDumpOutputPath)
 		} else {
 			ctx.ModuleErrorf("Only aconfig_declarations module type is allowed for "+