ARM: dts: stm32: Correct masks for GIC PPI interrupts on stm32mp13

Using GIC_CPU_MASK_SIMPLE(x), x should reflect the number of CPUs.
STM32MP13 is a single core A7.
Signed-off-by: NAlexandre Torgue <alexandre.torgue@foss.st.com>
Acked-by: NMarc Zyngier <maz@kernel.org>

arch/arm/boot/dts/stm32mp131.dtsi

@@ -92,10 +92,10 @@
 
 	timer {
 		compatible = "arm,armv7-timer";
-		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
 		interrupt-parent = <&intc>;
 		always-on;
 	};