Reduce sleep duration between marking and compaction am: 6dc2bb1d04 am: b9afc74852 am: 299458d3f8

Original change: https://android-review.googlesource.com/c/platform/art/+/2202616

Change-Id: I44edcc8085d39fff0b010d9d122715ef28954649
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>