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

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

Change-Id: If007b9cb212ffa48ca4294a4fa49b9836cbf7a34
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>