Merge "Add --logstats description for meminfo." into main am: 03c977c2 am: e13e4f31

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3217540



Change-Id: Ib58a42260e8a3f625a35590cda7a0291eb07180b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>