S390 [simd][liftoff] Implement relaxed lane select

Changes for TF instruction selector will be pasted
in the CL comments and will get applied once all
relaxed opcodes have been implemented in codegen/liftoff.

Change-Id: I231aa6fcc702a19704b7707331eba549c44232d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3718393Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#81313}

src/wasm/baseline/s390/liftoff-assembler-s390.h

@@ -2753,7 +2753,7 @@ void LiftoffAssembler::emit_s128_relaxed_laneselect(LiftoffRegister dst,
                                                     LiftoffRegister src1,
                                                     LiftoffRegister src2,
                                                     LiftoffRegister mask) {
-  bailout(kRelaxedSimd, "emit_s128_relaxed_laneselect");
+  emit_s128_select(dst, src1, src2, mask);
 }
 
 void LiftoffAssembler::emit_f64x2_relaxed_min(LiftoffRegister dst,