net: fec: add WoL support for i.MX8MQ

net: fec: add WoL support for i.MX8MQ

By default FEC driver treat irq[0] (i.e. int0 described in dt-binding) as
wakeup interrupt, but this situation changed on i.MX8M serials, SoC
integration guys mix wakeup interrupt signal into int2 interrupt line.
This patch introduces FEC_QUIRK_WAKEUP_FROM_INT2 to indicate int2 as wakeup
interrupt for i.MX8MQ.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20210812070948.25797-1-qiangqing.zhang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>