arm64: dts: qcom: pm8998: add interrupt controller properties

Add interrupt controller properties now that spmi-gpio is a proper
hierarchical IRQ chip. The interrupts property is no longer needed so
remove it.

This change was not tested on any hardware but the same change was
tested on qcom-pm8941.dtsi using a LG Nexus 5 (hammerhead) phone with
no issues.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm64/boot/dts/qcom/pm8998.dtsi

@@ -94,32 +94,8 @@ pm8998_gpio: gpios@c000 {
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;
-			interrupts = <0 0xc0 0 IRQ_TYPE_NONE>,
-				     <0 0xc1 0 IRQ_TYPE_NONE>,
-				     <0 0xc2 0 IRQ_TYPE_NONE>,
-				     <0 0xc3 0 IRQ_TYPE_NONE>,
-				     <0 0xc4 0 IRQ_TYPE_NONE>,
-				     <0 0xc5 0 IRQ_TYPE_NONE>,
-				     <0 0xc6 0 IRQ_TYPE_NONE>,
-				     <0 0xc7 0 IRQ_TYPE_NONE>,
-				     <0 0xc8 0 IRQ_TYPE_NONE>,
-				     <0 0xc9 0 IRQ_TYPE_NONE>,
-				     <0 0xca 0 IRQ_TYPE_NONE>,
-				     <0 0xcb 0 IRQ_TYPE_NONE>,
-				     <0 0xcc 0 IRQ_TYPE_NONE>,
-				     <0 0xcd 0 IRQ_TYPE_NONE>,
-				     <0 0xce 0 IRQ_TYPE_NONE>,
-				     <0 0xcf 0 IRQ_TYPE_NONE>,
-				     <0 0xd0 0 IRQ_TYPE_NONE>,
-				     <0 0xd1 0 IRQ_TYPE_NONE>,
-				     <0 0xd2 0 IRQ_TYPE_NONE>,
-				     <0 0xd3 0 IRQ_TYPE_NONE>,
-				     <0 0xd4 0 IRQ_TYPE_NONE>,
-				     <0 0xd5 0 IRQ_TYPE_NONE>,
-				     <0 0xd6 0 IRQ_TYPE_NONE>,
-				     <0 0xd7 0 IRQ_TYPE_NONE>,
-				     <0 0xd8 0 IRQ_TYPE_NONE>,
-				     <0 0xd9 0 IRQ_TYPE_NONE>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 
 	};