ARM: hisi: drop useless depend on ARCH_MULTI_V7

The ARCH_HISI depends on ARCH_MULTI_V7, no need to add this depend
to each sub-menu config, and use tabs where possible.

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