bluetooth: Start pipewire-pulse for AAC testing

pipewire-pulse service is needed in streaming, without starting it,
wireplumber won't create a sink target.

BUG=b:339042565
TEST=run bluetooth_AdapterAUHealth.au_a2dp_aac_test.floss

Change-Id: I53f46b9c5e12ea646c1b4b436aad1fa595524b28
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/5600026
Reviewed-by: John Lai <johnlai@google.com>
Tested-by: Yun-hao Chung <howardchung@chromium.org>
Commit-Queue: Yun-hao Chung <howardchung@chromium.org>
1 file changed