scsi: iscsi: Move iscsi_ep_disconnect()

stable inclusion
from stable-v5.10.112
commit 699bd835c36e095dc80bea21d9a15cd7f7bc8b9f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5HL0X

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=699bd835c36e095dc80bea21d9a15cd7f7bc8b9f

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[ Upstream commit c34f95e9 ]

This patch moves iscsi_ep_disconnect() so it can be called earlier in the
next patch.

Link: https://lore.kernel.org/r/20220408001314.5014-2-michael.christie@oracle.com


Tested-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>