Always use the top tier register allocator when statically compiling
code as we want the best performance and aren't as concerned about
compile time.

This also avoids a current bug when the mid-tier register allocator
is used with statically compiled code.

Bug: chromium:1299793
Change-Id: I74175d75847d092d1d5373661d536a299a7da1b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3484316Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79400}