Merge "BootReceiver: drop code processing dmesg, employ dmesgd" am: dae8e486bf am: f33f6bd0b5 am: 7110d66b8b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1978666

Change-Id: Icc2555c945c933b9f88373c1aaf16107a1a69553