Add seccomp test support for risc64 am: 96d0f860cc

Original change: https://android-review.googlesource.com/c/platform/external/seccomp-tests/+/2252393

Change-Id: I9fa373c4bdba6c12c43a75d6493082070ff20985
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>