Update CHANGELOG for v20.1 am: a94219a7a9 am: 135518f660 am: 9279d7d96b am: f20a2c86ef am: 15b6eb38cf
Update CHANGELOG for v20.1 am: a94219a7a9 am: 135518f660 am: 9279d7d96b am: f20a2c86ef am: 15b6eb38cf

Original change: https://android-review.googlesource.com/c/platform/external/perfetto/+/1844895

Change-Id: Ic680b7ea8e52534a0c504bc437a3151d713a4510

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto