Run dmesgd when the device starts to collect boot-time reports am: 7836dace76 am: 05a72dff1a

Original change: https://android-review.googlesource.com/c/platform/system/dmesgd/+/2309006

Change-Id: Ia925672a665d526b419a17f03c80eb0dac7c55a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>