fix build issue for cudaEvent_t

test=develop

paddle/fluid/platform/event.h

@@ -14,6 +14,9 @@ limitations under the License. */
 
 #pragma once
 #include <string>
+#ifdef PADDLE_WITH_CUDA
+#include "paddle/fluid/platform/gpu_info.h"
+#endif
 
 namespace paddle {
 namespace platform {