config: x86_64: Add initial openeuler_defconfig

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7JK23

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This config is based on x86_64 openeuler_defconfig of
openEuler-22.03-LTS-SP2:5.10.0-153.17.0, generated by 'make olddefconfig'
and cleanup compiler's indicators.
Signed-off-by: NWei Li <liwei391@huawei.com>