livepatch/x86: enable livepatch config openeuler

hulk inclusion
category: feature
bugzilla: 5507
CVE: NA

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We have completed the livepatch without ftrace for x86_64,
we can now enable it.

Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>
Reviewed-By: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>