Merge "lshal: use std::async" into main am: 39700158 am: 8777ba22 am: f52161e6

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2876744



Change-Id: I6fd4c82389856019f3ae89e94241530a6c6e1465
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>