Port 1fcfc6a6

Original Commit Message:

    Read only a single byte of FLAG_trace_osr in assembly builtin code to
    make asan happy in the simulator.

R=cbruni@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I29d21bfb79999e5e73ca546368bdf812a2353eef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3648167Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80552}