Add ui/dist to gitignore. am: 375eac0593 am: 94863e629d am: f12b350eff
Add ui/dist to gitignore. am: 375eac0593 am: 94863e629d am: f12b350eff

Original change: https://android-review.googlesource.com/c/platform/external/perfetto/+/1642139

Change-Id: I0b8e5abce192e3ca6c0fc2fa25390f3e751766b1

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