s390x: [liftoff] implement AtomicLoad

Change-Id: I56728b6951940a8f0fad4934a015c798a823f578
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2795241Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73729}

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

@@ -418,7 +418,7 @@ void LiftoffAssembler::Store(Register dst_addr, Register offset_reg,
 void LiftoffAssembler::AtomicLoad(LiftoffRegister dst, Register src_addr,
                                   Register offset_reg, uintptr_t offset_imm,
                                   LoadType type, LiftoffRegList pinned) {
-  bailout(kAtomics, "AtomicLoad");
+  Load(dst, src_addr, offset_reg, offset_imm, type, pinned, nullptr, true);
 }
 
 void LiftoffAssembler::AtomicStore(Register dst_addr, Register offset_reg,