can: kvaser_pciefd: Clear listen-only bit if not explicitly requested

commit bf7ac55e upstream.

The listen-only bit was never cleared, causing the controller to
always use listen-only mode, if previously set.

Fixes: 26ad340e

 ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")
Cc: stable@vger.kernel.org
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/r/20230516134318.104279-3-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>