Radio button problem solved.

<?php
    if (count($fornecedor_tipos)>0) {
        foreach ($fornecedor_tipos as $key => $value) { ?>
        <div class="col-sm-6">
            <?php if ($value->id == 2) { ?>
                <input class="inpchoice" type="radio" name="data[Fornecedor][tipo_id]" id="<?=$value->id?>" value="<?=$value->id?>" checked>
            <?php } else { ?>
                <input class="inpchoice" type="radio" name="data[Fornecedor][tipo_id]" id="<?=$value->id?>" value="<?=$value->id?>">
            <?php } ?>

            <label class="choice" for="<?=$value->id?>" style="width:50%;"><?=$value->nome?></label>
        </div>
        <?php
      }
    }
?>