arm64: defconfig: Enable DesignWare APB GPIO controller

The Synopsys DesignWare APB GPIO controller is used by several vender's socs,
like apm/marvell/altera/hisilicon, enable it by default.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>