[automerge] Adjust actual work duration when target time is changed within...

[automerge] Adjust actual work duration when target time is changed within allowed deviation limit 2p: 0aba49ee 2p: 58f64d89

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/17606044

Bug: 195990840
Change-Id: Idca847d28f0e7239c3ede1c19a4c20b5f689b577