arm32: kaslr: pop visibility when compile decompress boot code as we need relocate BSS by GOT.

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8KNA9


CVE: NA

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If we not hide the GOT, when insert module which reference global
variable we got error "Unknown symbol_GLOBAL_OFFSET_TABLE_ (err 0)".

Signed-off-by: Ye Bin <yebin10@huawei.com>

Conflicts:
    Merge OLK-5.10 fix patch e703de76

Signed-off-by: Felix Fu <fuzhen5@huawei.com>