scsi: cxgb4i: Clean up a debug printk

The pr_fmt() at the top of the file already includes the __func__ so we can
remove the duplicative "cxgbi_conn_init_pdu:" from the string here.  Now it
all fits on one line as well.

Link: https://lore.kernel.org/r/20200713105100.GA251988@mwanda


Acked-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>