[tracing] Add new category v8.wasm.turbofan

A new tracing category was introduced in https://crrev.com/c/2595436.

Bug: chromium:1084929
Change-Id: I9327c3375dfd65727f6d5a81bf1efcf51eda90cb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2627398Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843116}

base/trace_event/builtin_categories.h

@@ -246,6 +246,7 @@
   X(TRACE_DISABLED_BY_DEFAULT("v8.stack_trace"))                         \
   X(TRACE_DISABLED_BY_DEFAULT("v8.turbofan"))                            \
   X(TRACE_DISABLED_BY_DEFAULT("v8.wasm.detailed"))                       \
+  X(TRACE_DISABLED_BY_DEFAULT("v8.wasm.turbofan"))                       \
   X(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"))                \
   X(TRACE_DISABLED_BY_DEFAULT("viz.gpu_composite_time"))                 \
   X(TRACE_DISABLED_BY_DEFAULT("viz.debug.overlay_planes"))               \