Merge "Fill in pprof time_nanos from profile timestamp" into main am: c38d95e395 am: cc8500f0e8 am: 4c0ca55aca

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2845196

Change-Id: I25ca6e9199200f6d03bb0cfff0a877c0dbfadb5f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>