can: m_can: Remove coalesing disable in isr during suspend

We don't need to disable coalescing when the interrupt handler executes
while the chip is suspended. The coalescing is already reset during
suspend.

Fixes: 07f25091 ("can: m_can: Implement receive coalescing")
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20240805183047.305630-3-msp@baylibre.com


Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>