Create data class VSyncSource::VSyncData.

Clean up in preparation for ag/16682595.

Bug: 205721584
Test: atest libsurfaceflinger_unittest
Change-Id: I64f0ea618037136051b2c895f956e523d22b698f
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.cpp b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
index 50b38c9..c593340 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.cpp
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
@@ -180,7 +180,7 @@
     }
 
     if (callback != nullptr) {
-        callback->onVSyncEvent(targetWakeupTime, vsyncTime, readyTime);
+        callback->onVSyncEvent(targetWakeupTime, {vsyncTime, readyTime});
     }
 }