hugetlb_cma_reserve() is called at the wrong place. numa_init has not been
done yet. so all reserved memory will be located at node0.

Fixes: cf11e85f ("mm: hugetlb: optionally allocate gigantic hugepages using cma")
Signed-off-by: NBarry Song <song.bao.hua@hisilicon.com>
Reviewed-by: NAnshuman Khandual <anshuman.khandual@arm.com>
Acked-by: NRoman Gushchin <guro@fb.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200617215828.25296-1-song.bao.hua@hisilicon.comSigned-off-by: NWill Deacon <will@kernel.org>