ARM: dts: BCM5301X: Specify pcie2 in the DT

The SoC supports three pcie ports. Currently, only
pcie0 and pcie1 are enabled. This patch adds the
pcie2 port as well.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm5301x.dtsi

@@ -252,6 +252,10 @@ pcie1: pcie@13000 {
 			reg = <0x00013000 0x1000>;
 		};
 
+		pcie2: pcie@14000 {
+			reg = <0x00014000 0x1000>;
+		};
+
 		usb2: usb2@21000 {
 			reg = <0x00021000 0x1000>;