can: rx-offload: rename can_rx_offload_irq_queue_err_skb() to can_rx_offload_queue_tail()

This function has nothing todo with error.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>