arm64: dts: msm8996: fix gic_irq_domain_translate warnings

Remove the usage of IRQ_TYPE_NONE to fix loud warnings from
patch (83a86fbb "irqchip/gic: Loudly complain about
the use of IRQ_TYPE_NONE").

Signed-off-by: Thierry Escande <thierry.escande@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>