Merge changes from topic "getNanoTimeAdjustment" am: 4c37a04b40

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

Change-Id: If9432362f8895cf203b33e2f7800a44d78fbfffb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>