Fixed use of designated initializers Windows (#976)

Summary:
Fix CUPTI code not compiling on MSVC due to designated initializers not working on Windows.
`C:\Work\pytorch\third_party\kineto\libkineto\src\CuptiActivityProfiler.cpp(658): error C7555: use of designated initializers requires at least '/std:c++20'`

Pull Request resolved: #976

Reviewed By: aaronenyeshi

Differential Revision: D61810245

Pulled By: sraikund16

fbshipit-source-id: 240a8163477e70b3a3cef0a78bc7cea260d5528e

libkineto/src/CuptiActivityProfiler.cpp

@@ -654,11 +654,11 @@ void CuptiActivityProfiler::handleCudaSyncActivity(
   if (isWaitEventSync(activity->type)) {
     // Defer logging wait event syncs till the end so we only
     // log these events if a stream has some GPU kernels on it.
-    DeferredLogEntry entry{
-      .device = device_id,
-      .stream = activity->streamId,
-      .logMe = log_event,
-    };
+    DeferredLogEntry entry;
+    entry.device = device_id;
+    entry.stream = activity->streamId;
+    entry.logMe = log_event;
+
     logQueue_.push_back(entry);
   } else {
     log_event();