Make cc.NewLLndkStubLibrary as public

We need to extend llndk_library to automatically set symbol_file for the
llndk version of libclang_rt.asan* libraries.

Bug: 67011251
Test: build

Change-Id: Ib6964817759f9228456e4fb2a27fce3bc09423a9
diff --git a/cc/llndk_library.go b/cc/llndk_library.go
index 40373cc..154b3f4 100644
--- a/cc/llndk_library.go
+++ b/cc/llndk_library.go
@@ -151,7 +151,7 @@
 	return stub.libraryDecorator.link(ctx, flags, deps, objs)
 }
 
-func newLLndkStubLibrary() *Module {
+func NewLLndkStubLibrary() *Module {
 	module, library := NewLibrary(android.DeviceSupported)
 	library.BuildOnlyShared()
 	module.stl = nil
@@ -175,7 +175,7 @@
 }
 
 func llndkLibraryFactory() android.Module {
-	module := newLLndkStubLibrary()
+	module := NewLLndkStubLibrary()
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibBoth)
 	return module
 }