arm64: dts: rockchip: adjust SMMU interrupt type on rk3588

[ Upstream commit 8546cfd08aa4b982acd2357403a1f15495d622ec ]

The SMMU architecture requires wired interrupts to be edge triggered,
which does not align with the DT description for the RK3588.  This leads
to interrupt storms, as the SMMU continues to hold the pin high and only
pulls it down for a short amount when issuing an IRQ.  Update the DT
description to be in line with the spec and perceived reality.

Signed-off-by: Patrick Wildt <patrick@blueri.se>
Fixes: cd81d3a0 ("arm64: dts: rockchip: add rk3588 pcie and php IOMMUs")
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/Z6pxme2Chmf3d3uK@windev.fritz.box


Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>