Merge "cargo2android.py:vendor and vendor_ramdisk flags." am: 52a6dbe9d3 am: fe432ba9f7 am: 6da47720f9 am: 3665e6eeb5

Original change: https://android-review.googlesource.com/c/platform/development/+/1770108

Change-Id: I62f6c63e28c1ce2c1f70f7d304961318d83e947c