Merge "init: do not create dev.mnt. properties for emulated mounts" am:...

Merge "init: do not create dev.mnt. properties for emulated mounts" am: 9481c673 am: 6c1a2df7 am: d245f1c6

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1424948

Change-Id: I60168d378609a913a413dd569b72d2aa71b18cc2