wifi: brcmfmac: of: Make use of irq_get_trigger_type()

Convert irqd_get_trigger_type(irq_get_irq_data(irq)) cases to the more
simple irq_get_trigger_type().

Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240904154919.118513-2-vassilisamir@gmail.com