Merge "libprefetch: fix regex to match 5.x/6.x ftrace event format" into main am: 1a0f1623

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3555684



Change-Id: I026fbfc01f311c1e8cfbf1f650ee4784208425f8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>