Revert "Rename aidl_ include and src directories."

This reverts commit 5400741601.

Reason for revert: broke hidl build

Change-Id: I3954a1c0d6c0d7a663bd2a1c8c8888cae37cee80

libwvdrmengine/aidl_src/WVCreatePluginFactories.cpp

@@ -0,0 +1,21 @@
+//
+// Copyright 2022 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine License
+// Agreement.
+//
+
+#include "WVCreatePluginFactories.h"
+
+namespace wvdrm {
+namespace hardware {
+namespace drm {
+namespace widevine {
+
+std::shared_ptr<WVDrmFactory> createDrmFactory() {
+  return ndk::SharedRefBase::make<WVDrmFactory>();
+}
+
+}  // namespace widevine
+}  // namespace drm
+}  // namespace hardware
+}  // namespace wvdrm