can: j1939: fix error in J1939 documentation.

can: j1939: fix error in J1939 documentation.

[ Upstream commit b6ec62e01aa4229bc9d3861d1073806767ea7838 ]

The description of PDU1 format usage mistakenly referred to PDU2 format.

Signed-off-by: Alexander Hölzl <alexander.hoelzl@gmx.net>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://patch.msgid.link/20241023145257.82709-1-alexander.hoelzl@gmx.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>