More robust parsing of /proc/meminfo am: 97bf543c68

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2327374

Change-Id: Idd2fc742b39b1ad60d6334f31ce70d7887e49682
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>