ext4: correct the misjudgment in ext4_iget_extra_inode

hulk inclusion
category: bugfix
bugzilla: 186866, https://gitee.com/openeuler/kernel/issues/I5DTBL


CVE: NA

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Use the EXT4_INODE_HAS_XATTR_SPACE macro to more accurately
determine whether the inode have xattr space.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>