thunderbolt: Use tb_tunnel_dbg() where possible to make logging more consistent

[ Upstream commit fe8a0293 ]

This makes it easier to find out the tunnel in question. Also drop a
couple of lines that generate duplicate information.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Qin Wan <qin.wan@hp.com>
Signed-off-by: Alexandru Gagniuc <alexandru.gagniuc@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>