Merge "NuPlayerRenderer: Reset negative media time to zero" am: 75ea8d08bf am: f8c5e6a793 am: 77aaf7a96a

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1491239

Change-Id: I6aa2af2bd22a8737d5e13d389676b537b7cc4aa7