health storage AIDL HAL logs more.

Test: builds
Bug: 206775954
Change-Id: I211e29e495a974e9c93ac97c7dd9ef93e1bcb5ef
diff --git a/health/storage/aidl/default/main.cpp b/health/storage/aidl/default/main.cpp
index 186b64c..74e266f 100644
--- a/health/storage/aidl/default/main.cpp
+++ b/health/storage/aidl/default/main.cpp
@@ -24,14 +24,19 @@
 using std::string_literals::operator""s;
 
 int main() {
+    LOG(INFO) << "Health storage AIDL HAL starting...";
     ABinderProcess_setThreadPoolMaxThreadCount(0);
 
     // make a default storage service
     auto storage = ndk::SharedRefBase::make<Storage>();
     const std::string name = Storage::descriptor + "/default"s;
+    LOG(INFO) << "Health storage AIDL HAL registering...";
     CHECK_EQ(STATUS_OK,
              AServiceManager_registerLazyService(storage->asBinder().get(), name.c_str()));
 
+    LOG(INFO) << "Health storage AIDL HAL joining...";
     ABinderProcess_joinThreadPool();
+
+    LOG(ERROR) << "Health storage AIDL HAL join thread ends, exiting...";
     return EXIT_FAILURE;  // should not reach
 }