Merge "Fix VibrationThread with repeating waveforms of positive amplitudes" into sc-dev am: 9ab91ae6 am: af5cbff3 am: 8f32fce2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15245532

Change-Id: I81c1390b8138f3bd2669ca9e1d2f7a3c1ea04ac2