Fix VulkanMemoryAllocation typo in proto_parser

Change-Id: I260943e9b05e886e1cdb5095a2ce4e6299a091ec
diff --git a/src/trace_processor/proto_trace_parser.cc b/src/trace_processor/proto_trace_parser.cc
index 8bc2fc9..818028d 100644
--- a/src/trace_processor/proto_trace_parser.cc
+++ b/src/trace_processor/proto_trace_parser.cc
@@ -507,7 +507,7 @@
 
   if (packet.has_vulkan_memory_event()) {
     graphics_event_parser_->ParseVulkanMemoryEvent(
-        packet.graphics_frame_event());
+        packet.vulkan_memory_event());
   }
 
   // TODO(lalitm): maybe move this to the flush method in the trace processor