dm ioctl: print error when HC and MD do not match

hulk inclusion
category: bugfix
bugzilla: 187327,https://gitee.com/openeuler/kernel/issues/I6111I


CVE: NA

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Print error when hc and md do not match, which is convenient for locating
the cause of the problem

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