Merge "WIFI: Add log to debug onSubsystemRestart" into sc-qpr1-dev am: 8169c932e6

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15988967

Change-Id: I8798d3ad725e8fe294ce835a3a185351117f701c
diff --git a/wifi/1.5/default/wifi.cpp b/wifi/1.5/default/wifi.cpp
index b9f20a4..a85b242 100644
--- a/wifi/1.5/default/wifi.cpp
+++ b/wifi/1.5/default/wifi.cpp
@@ -131,8 +131,14 @@
                 WifiStatus wifi_status =
                     createWifiStatus(WifiStatusCode::ERROR_UNKNOWN, error);
                 for (const auto& callback : event_cb_handler_.getCallbacks()) {
+                    LOG(INFO) << "Attempting to invoke onSubsystemRestart "
+                                 "callback";
                     if (!callback->onSubsystemRestart(wifi_status).isOk()) {
-                        LOG(ERROR) << "Failed to invoke onFailure callback";
+                        LOG(ERROR)
+                            << "Failed to invoke onSubsystemRestart callback";
+                    } else {
+                        LOG(INFO) << "Succeeded to invoke onSubsystemRestart "
+                                     "callback";
                     }
                 }
             };