net/smc: Correct smc link connection counter in case of smc client

mainline inclusion
from mainline-v5.14-rc6
commit 64513d26
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I79GVV
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=64513d269e8971aabb7e787955a1b320e3031306



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SMC clients may be assigned to a different link after the initial
connection between two peers was established. In such a case,
the connection counter was not correctly set.

Update the connection counter correctly when a smc client connection
is assigned to a different smc link.

Fixes: 07d51580 ("net/smc: Add connection counters for links")
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Tested-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Gengbiao Shen <shengengbiao@sangfor.com.cn>