Merge "DSU service: Pipeline the installation task to improve performance" am:...

Merge "DSU service: Pipeline the installation task to improve performance" am: 309fad06 am: 1991fbc7 am: 31de7473

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2045078



Change-Id: If1a1cc1ddcccc2fda857204b6e59a888a7b2ce62
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>