This fulfills a "TODO: remove this when there is a riscv64 libcronet" because with https://android-review.googlesource.com/2952606 there is now a RISC-V64 libcronet. 🙂 Bug: 276962315 Change-Id: Ia69657b13a35e47852bf2bc46b2aac95fcf46e0a