Update simple_embedding riscv64 prebuilt (#5794)

Update with the identifier change in https://github.com/google/iree/pull/5748
diff --git a/iree/samples/simple_embedding/data/simple_embedding_test-llvm-aot_rv64.vmfb b/iree/samples/simple_embedding/data/simple_embedding_test-llvm-aot_rv64.vmfb
index cde82ce..9357f55 100644
--- a/iree/samples/simple_embedding/data/simple_embedding_test-llvm-aot_rv64.vmfb
+++ b/iree/samples/simple_embedding/data/simple_embedding_test-llvm-aot_rv64.vmfb
Binary files differ