ARM: dts: NSP: Fix PCIe controllers interrupt types

The interrupts for the PCIe controllers should all be of type
IRQ_TYPE_LEVEL_HIGH instead of IRQ_TYPE_NONE.

Fixes: d71eb941 ("ARM: dts: NSP: Add MSI support on PCI")
Fixes: 52219902 ("ARM: dts: NSP: Fix PCIE DT issue")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>