can: hi311x: do not report txerr and rxerr during bus-off

can: hi311x: do not report txerr and rxerr during bus-off

[ Upstream commit 2260da28d8b43af2a1f27bf0b947344bc0f806b2 ]

During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: efc1b07ab6e7 ("can: hi311x: Add Holt HI-311x CAN driver")
Link: https://lore.kernel.org/all/20220719143550.3681-6-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>