Merge "Add /mnt/vm and mount tmpfs onto it for early VM" into main am: fe4f5a1e

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3204633



Change-Id: I6b6630b600698750156bbfc03a92a210b03c736a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>