Merge "init: Add more diagnostics for signalfd hangs." am: fe62ca7165 am: 885dcf9661 am: 4a79453de3

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2027088

Change-Id: I71ec165ab5f9ed16dfc83a73006ad88df5c0d5a7