ARM: dts: stih407: Fix complain about IRQ_TYPE_NONE usage

Since commit 83a86fbb5b ("irqchip/gic: Loudly complain about the use of IRQ_TYPE_NONE")
kernel is complaining about the IRQ_TYPE_NONE usage which shouldn't
be used.

Use IRQ_TYPE_LEVEL_HIGH instead.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

arch/arm/boot/dts/stih407.dtsi

@@ -108,7 +108,7 @@
 				reg = <0x8d04000 0x1000>;
 				reg-names = "hdmi-reg";
 				#sound-dai-cells = <0>;
-				interrupts = <GIC_SPI 106 IRQ_TYPE_NONE>;
+				interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-names	= "irq";
 				clock-names = "pix",
 					      "tmds",