xfrm: clone missing x->lastused in xfrm_do_migrate

stable inclusion
from stable-v5.10.140
commit 4379a10c1db793ce39ea410e36ddc3099ec0694c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I63FTT

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4379a10c1db793ce39ea410e36ddc3099ec0694c



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[ Upstream commit 6aa811ac ]

x->lastused was not cloned in xfrm_do_migrate. Add it to clone during
migrate.

Fixes: 80c9abaa ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>

 Conflicts:
	net/xfrm/xfrm_state.c
Reviewed-by: Wei Li <liwei391@huawei.com>