The helper would cause the stack to be unaligned during pushes which caused issues
on Arm64. PushMultipleTimes is only used once by InterpreterEntryTrampoline,
therefore it doesn't make sense to change it's behaviour for --optimize-for-size.

Change-Id: I3bc7d39bc38ffd22a3ee6cca1cdafe5d656d77b5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1773275
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63443}