livepatch: Fix patching functions which have static_call

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60L10


CVE: NA

--------------------------------

It was reported that if 'static_call' is used in a old function, then
the livepatch module created by kpatch for that old function cannot be
inserted normally.

Root cause is that relocation of static_call symbols in livepatch module
has not been done while initing:
  load_module
    prepare_coming_module
      blocking_notifier_call_chain_robust
        notifier_call_chain_robust
          static_call_module_notify
            <-- 1. static_call symbols init here, but relocation is done
                   at below MARK "2."
    do_init_module
      do_one_initcall
        klp_register_patch
          klp_init_patch
            klp_init_object
              klp_init_object_loaded    <--  2. relocate .klp.xxx here

To solve it, we move the static_call initialization after relocation.

Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Reviewed-by: Kuohai Xu <xukuohai@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>