arm64: Errata: fix kabi changed by cpu_errata and enable idc

ascend inclusion
category: feature
bugzilla: 46922
CVE: NA

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Patch "cache: Workaround HiSilicon Taishan DC CVAU"
breaks the kabi symbols:
cpu_hwcaps
cpu_hwcap_keys

Patch "arm64: Errata: fix kabi changed by cpu_errata" try to fix it
but incomplete. Eable IDC on platform TSV{110,200}.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>