ARM: dts: armada-xp-98dx3236.dtsi: Add definitions for PCIe legacy INTx interrupts

Add definitions for PCIe legacy INTx interrupts.

This is required for example in a scenario where a driver requests only
one of the legacy interrupts (INTA). Without this, the driver would be
notified on events on all 4 (INTA, INTB, INTC, INTD), even if it
requested only one of them.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/armada-xp-98dx3236.dtsi

@@ -76,16 +76,26 @@ pcie1: pcie@1,0 {
 				reg = <0x0800 0 0 0 0>;
 				#address-cells = <3>;
 				#size-cells = <2>;
+				interrupt-names = "intx";
+				interrupts-extended = <&mpic 58>;
 				#interrupt-cells = <1>;
 				ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
 					  0x81000000 0 0 0x81000000 0x1 0 1 0>;
 				bus-range = <0x00 0xff>;
-				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &mpic 58>;
+				interrupt-map-mask = <0 0 0 7>;
+				interrupt-map = <0 0 0 1 &pcie1_intc 0>,
+						<0 0 0 2 &pcie1_intc 1>,
+						<0 0 0 3 &pcie1_intc 2>,
+						<0 0 0 4 &pcie1_intc 3>;
 				marvell,pcie-port = <0>;
 				marvell,pcie-lane = <0>;
 				clocks = <&gateclk 5>;
 				status = "disabled";
+
+				pcie1_intc: interrupt-controller {
+					interrupt-controller;
+					#interrupt-cells = <1>;
+				};
 			};
 		};