Merge "Mark rust sysroots as vendor ramdisk available." am: 94ad97f290 am: 5e104ede28 am: fb867ba7ec

Original change: https://android-review.googlesource.com/c/platform/prebuilts/rust/+/1578583

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic0df309657585ae1e3de117e991dd3e58c9c01a9