MLK-21597 can: flexcan: fix deadlock when can't call flexcan_noirq_resume()

MLK-21597 can: flexcan: fix deadlock when can't call flexcan_noirq_resume()

There is a limitation about wakeup event mechanisim in driver:

Other devices may suspend failed after system calling flexcan_suspend()
and before calling flexcan_noirq_suspend(), the result is that
flexcan_noirq_resume() will not be called. This will leave flexcan in
stop mode, and with the current driver it can't recover from this even
with a soft reboot, it requires a hard reboot.

This patch is intends to fix the scenario.

Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>