Merge "Add blob cache related tracepoints" into udc-dev am: 16f61146

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22800233



Change-Id: I72143ae321c37422c11d554761a7e15d31650897
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>