This test would fail when running natively on arm64. If USE_SIMULATOR isn't
defined, then the assembler always generates a brk instruction, regarless of the
`enable_simulator_code` Assembler option.

Change-Id: Id56788ba60ab4a13857825ebf09bf55375250c9d
Reviewed-on: https://chromium-review.googlesource.com/1174712Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#55148}