Merge "Make vendor_ramdisk_available." am: 4a13357c76 am: 8565f18203 am: 19b86d9b44 am: 6e6a931704 am: 35050b2baf

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

Change-Id: I1f8ff648da02533bafe79e2d1d7daf8b692e0b87