Change log level of key tracing events

Change log level (from verbose to debug) for the following tracing events:
- tracing start
- tracing stop
- tracing flush to disk

Bug: b/293429094
Test: N/A
Change-Id: I54b18bd9b9ae2d418d42c9cf754cc266b1746ab5
diff --git a/services/surfaceflinger/Tracing/TransactionDataSource.cpp b/services/surfaceflinger/Tracing/TransactionDataSource.cpp
index 05b89b8..6c9ed30 100644
--- a/services/surfaceflinger/Tracing/TransactionDataSource.cpp
+++ b/services/surfaceflinger/Tracing/TransactionDataSource.cpp
@@ -49,26 +49,26 @@
         mMode = static_cast<TransactionTracing::Mode>(config.mode());
     } else {
         mMode = TransactionTracing::Mode::MODE_CONTINUOUS;
-        ALOGV("Received config with unspecified 'mode'. Using 'CONTINUOUS' as default");
+        ALOGD("Received config with unspecified 'mode'. Using 'CONTINUOUS' as default");
     }
 }
 
 void TransactionDataSource::OnStart(const StartArgs&) {
-    ALOGV("Received OnStart event");
+    ALOGD("Received OnStart event");
     if (auto* p = mTransactionTracing.load()) {
         p->onStart(mMode);
     }
 }
 
 void TransactionDataSource::OnFlush(const FlushArgs&) {
-    ALOGV("Received OnFlush event");
+    ALOGD("Received OnFlush event");
     if (auto* p = mTransactionTracing.load()) {
         p->onFlush(mMode);
     }
 }
 
 void TransactionDataSource::OnStop(const StopArgs&) {
-    ALOGV("Received OnStop event");
+    ALOGD("Received OnStop event");
 }
 
 TransactionTracing::Mode TransactionDataSource::GetMode() const {