Merge changes from topic "getNanoTimeAdjustment" am: 4c37a04b40 am: d1cb9beffc am: f94efba217

Original change: https://android-review.googlesource.com/c/platform/libcore/+/2053978

Change-Id: I33424e1ec050a1520a27bc5e0e3f333f519f7f91
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>