ARM: dts: imx6qdl-sabreauto: Enable pcie

The imx6qdl-sabreauto boards have a pcie slot so let's enable it.

Tested on imx6dl-sabreauto with an atk9k wifi card; scanning works.

There are unhandled differences for imx6qp but imx6qp-sabreauto.dts
already contains a snippet explicitly disabling the &pcie node so that
can be dealt with later.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-sabreauto.dtsi

@@ -749,6 +749,10 @@ &pwm3 {
 	status = "okay";
 };
 
+&pcie {
+	status = "okay";
+};
+
 &spdif {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_spdif>;