usbip: Reduce CONNRESET message noise in dmesg from stub

usbip: Reduce CONNRESET message noise in dmesg from stub

stub_complete() prints informational messages for each urb unlink
filling dmesg. Change the message to dev_dbg() similar to vhci
reports the CONNRESET condition.

Reported-by: Ignacio Hernandez-Ros <ignacio@hernandez-ros.com>
Closes: https://lore.kernel.org/all/0101019b92e81c20-09906fb4-d5e8-40a6-9192-ab693eef4179-000000@us-west-2.amazonses.com/
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://patch.msgid.link/20260121225157.34635-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>