Update a comment in proto_library.gni am: a7e60fe186
Update a comment in proto_library.gni am: a7e60fe186

Original change: https://android-review.googlesource.com/c/platform/external/perfetto/+/1325820

Change-Id: Ia8fb510a23a0b5be2cf702dd7d7e06d25605fd0f

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