Merge "profcollectd: Accept a tag argument to trace command" am: 433938a351 am: 00c56016bc am: 0a4c921167

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1353526

Change-Id: Iddf46d18ac8cd7b2976192685a5e4e90c822217d