Merge "Make vendor_ramdisk_available." am: 4a13357c76 am: 8565f18203 am: 19b86d9b44

Original change: https://android-review.googlesource.com/c/platform/external/jemalloc_new/+/1469669

Change-Id: I78bf5c9dbee63e7c532ee99ca4ea826af50c22dc