doc: kunpeng_hccs: Fix incorrect email domain name

mainline inclusion
from mainline-v6.8-rc1
commit a07d8fc358af5f297b41b2182a5fce710e3c9bd7
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8Y3PY
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.6-rc1&id=a07d8fc358af5f297b41b2182a5fce710e3c9bd7



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The email domain name in Contact is wrong. So this patch has to modify it.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>