[riscv64] Implement emit_s128_relaxed_laneselect

Port commit bd22e3be

Bug: v8:12284

Change-Id: I72ba5cfe221693125c366e7fcbc31dc936d18a16
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3647968
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#80543}

src/wasm/baseline/riscv64/liftoff-assembler-riscv64.h

@@ -1947,7 +1947,7 @@ void LiftoffAssembler::emit_s128_relaxed_laneselect(LiftoffRegister dst,
                                                     LiftoffRegister src1,
                                                     LiftoffRegister src2,
                                                     LiftoffRegister mask) {
-  bailout(kSimd, "emit_s128_relaxed_laneselect");
+  emit_s128_select(dst, src1, src2, mask);
 }
 
 void LiftoffAssembler::emit_i8x16_splat(LiftoffRegister dst,