[automerger skipped] Merge "lmkd: Skip memory.stat usage when per-app memcgs are not used" am: 1e0e1b44bd  -s ours am: 42f5cfbd45  -s ours am: 6d066c9a4c  -s ours
am: 297257295a  -s ours

Change-Id: I4b8a19e2cba6609ea691aa38f14ab9b602ea7b45