[wasm] Add timed histogram for lazy compile time

We currently only measure the compilation time of individual functions,
but that does not include other things that happen for lazy compilation,
like switching memory permissions or publishing the code.

This CL adds a dedicated counter to measure the complete lazy
compilation time.

R=jkummerow@chromium.org
CC=dlehmann@google.com

Bug: v8:11940
Change-Id: I9a87882d2adc7bea6c5258954a642da18b8337ef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2997106


Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75498}