openeuler_defconfig: enable HUGETLB_ALLOC_LIMIT

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8TKCL


CVE: NA

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Enable HUGETLB_ALLOC_LIMIT for openEuler configs.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>