Merge "Parallel Module Loading: Refactor threads pool and architecture" into main am: 341f7e963e

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3534700

Change-Id: Ib0921523a22863c7c03b143d091cc08de700a96b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>