Merge "Add riscv64 lunch target." am: 3336d5b392 am: 67dd1a41f9

Original change: https://android-review.googlesource.com/c/device/generic/art/+/2622170

Change-Id: I00f1f342c40c260c1f96ba269fc221930e7f051b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>