ARM: Kirkwood: ts219: Enable second PCIe port in DT.

Enable the second PCIe port on QNAP TS-11x/TS-21x devices as newer
revisions (rev 1.3) have a USB 3.0 chip from Etron on PCIe port 1.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-ts219-6282.dts

@@ -29,6 +29,14 @@ pmx_board_id: pmx-board-id {
 				marvell,function = "gpio";
 			};
 		};
+		pcie-controller {
+			status = "okay";
+
+			pcie@2,0 {
+				status = "okay";
+			};
+		};
+
 	};
 
 	gpio_keys {