use VLOG(2) to replace LOG(INFO), so PGLE has no verbose info (#357)

Author: cj401-amd

xla/backends/profiler/gpu/rocm_collector.h

@@ -178,7 +178,7 @@ class RocmTraceCollectorImpl : public RocmTraceCollector {
 
   void OnEventsDropped(const std::string& reason,
                        uint32_t correlation_id) override {
-    LOG(INFO) << "RocmTracerEvent dropped (correlation_id=" << correlation_id
+    VLOG(2) << "RocmTracerEvent dropped (correlation_id=" << correlation_id
               << ",) : " << reason << ".";
   }
 
@@ -217,4 +217,4 @@ std::unique_ptr<RocmTraceCollector> CreateRocmCollector(
 }  // namespace profiler
 }  // namespace xla
 
-#endif  // XLA_BACKENDS_PROFILER_GPU_ROCM_COLLECTOR_H_
+#endif  // XLA_BACKENDS_PROFILER_GPU_ROCM_COLLECTOR_H_