hulk inclusion
category: bugfix
bugzilla: 50423
CVE: NA

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reserve_crashkernel() is called twice by mistake, remove the second one.

Fixes: beb42167 ("arm64: mm: Move reserve_crashkernel() into mem_init()")
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>