GitLab

When the build flag enable_volume_tables_access is false the AThing speaker
build for CMA breaks. This adds the necessary #idefs.

Bug: internal b/77634874
Test: builds now
Change-Id: I8841c819c2ac5523c2953c6725c69b92bc328864
Reviewed-on: https://chromium-review.googlesource.com/998334Reviewed-by: Kenneth MacKay <kmackay@chromium.org>
Commit-Queue: Chris Kuiper <ckuiper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548491}