lmkd: Add lmkd wakeup information into killinfo logs am: d7b4fcb8a5 am: 403c7fd536 am: 48f7d0e49f

Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1371804

Change-Id: Ied2bb909d79ae865982795db181824a85bcf887c