Upgrade libtraceevent to libtraceevent-1.7.1 am: e50996d4ce am: 5ca0b9f527

Original change: https://android-review.googlesource.com/c/platform/external/libtraceevent/+/2394172

Change-Id: If9ac312ffb153d2e0e0f2250b89d2efcf6e8405e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>