Merge "simpleperf: Check if ETMDecoder is created." am: dd06e01bd0 am: ad13d88515

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2389433

Change-Id: I1649fd44cbbbd8865c96d60fe9943735f2658e0b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>