[wasm][liftoff][mips64] changed default position in switch-case

Bug: v8:10520
Change-Id: Id06c35f8004519cd778af12ad67aaee2d506609a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2207135
Commit-Queue: Richard Stotz <rstz@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67863}

src/wasm/baseline/mips64/liftoff-assembler-mips64.h

@@ -1177,8 +1177,6 @@ bool LiftoffAssembler::emit_type_conversion(WasmOpcode opcode,
     case kExprF64ReinterpretI64:
       dmtc1(src.gp(), dst.fp());
       return true;
-    default:
-      return false;
     case kExprI32SConvertSatF32:
       bailout(kNonTrappingFloatToInt, "kExprI32SConvertSatF32");
       return true;
@@ -1191,6 +1189,8 @@ bool LiftoffAssembler::emit_type_conversion(WasmOpcode opcode,
     case kExprI32UConvertSatF64:
       bailout(kNonTrappingFloatToInt, "kExprI32UConvertSatF64");
       return true;
+    default:
+      return false;
   }
 }