.type directive is required on arm to enable ARM/Thumb interworking.

Bug: chromium:1071168
Change-Id: I2ff5046719b9c8f611e81970bfa61c68ed850362
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153207Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67188}