scsi/hifc: Fix memory leakage bug

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I47Z9P



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The memory will be leaked when driver set the port_poto_cfg invalid value.

Signed-off-by: chenguangli <chenguangli2@huawei.com>
Reviewed-by: baowenyi <baowenyi@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>