Use apex name for apex linker namespace

Linkerconfig now uses apex_names to automatically generate linker
namespaces from apexes.

Bug: 148826508
Test: build / boot
Change-Id: Id7fa68531033124727e618284af4fd2a61bdd85f
diff --git a/libnativeloader/library_namespaces.cpp b/libnativeloader/library_namespaces.cpp
index 08a2290..5971917 100644
--- a/libnativeloader/library_namespaces.cpp
+++ b/libnativeloader/library_namespaces.cpp
@@ -42,9 +42,9 @@
 // vendor and system namespaces.
 constexpr const char* kVendorNamespaceName = "sphal";
 constexpr const char* kVndkNamespaceName = "vndk";
-constexpr const char* kArtNamespaceName = "art";
-constexpr const char* kNeuralNetworksNamespaceName = "neuralnetworks";
-constexpr const char* kCronetNamespaceName = "cronet";
+constexpr const char* kArtNamespaceName = "com.android.art";
+constexpr const char* kNeuralNetworksNamespaceName = "com.android.neuralnetworks";
+constexpr const char* kCronetNamespaceName = "com.android.cronet";
 
 // classloader-namespace is a linker namespace that is created for the loaded
 // app. To be specific, it is created for the app classloader. When