ARM: shmobile: r8a7791: Correct mask for GIC PPI interrupts

R-Car M2-W (r8a7791) contains two Cortex-A15 cores, hence the second
interrupt specifier cell for Private Peripheral Interrupts should use
"GIC_CPU_MASK_SIMPLE(2)".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791.dtsi

@@ -78,7 +78,7 @@
 			<0 0xf1002000 0 0x1000>,
 			<0 0xf1004000 0 0x2000>,
 			<0 0xf1006000 0 0x2000>;
-		interrupts = <1 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupts = <1 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
 	gpio0: gpio@e6050000 {
@@ -186,10 +186,10 @@
 
 	timer {
 		compatible = "arm,armv7-timer";
-		interrupts = <1 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <1 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <1 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-			     <1 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupts = <1 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <1 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <1 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <1 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 
 	cmt0: timer@ffca0000 {