test/codegen: add riscv64/rva23u64 specifiers to existing tests
Tests that exist for riscv64/rva22u64 should also be applied to
riscv64/rva23u64.
Change-Id: Ia529fdf0ac55b8bcb3dcd24fa80efef2351f3842
Reviewed-on: https://go-review.googlesource.com/c/go/+/652315 Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com> Reviewed-by: David Chase <drchase@google.com>