meminfo: Add memevents library am: f3190f4ca9 am: 37fab08f0b am: 65136d361c

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmeminfo/+/2450205

Change-Id: Ia4d15cdfabcfb36f0d1466fcd6257ed555b9886e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>