Merge "FerrochromeApp: Use downloader if ferrochrome image is missing" into main am: ad26edec19

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3196159

Change-Id: Iafb0e35affa6b5c14bda5f6234a6018e1f97b114
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>