arm64: dts: apq8016-sbc: enable UART0 on LS connector

The LS UART0 is not used by anything else and should be enabled for
expansion boards.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Andy Gross <agross@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi

@@ -27,6 +27,13 @@ chosen {
 	};
 
 	soc {
+		serial@78af000 {
+			status = "okay";
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&blsp1_uart1_default>;
+			pinctrl-1 = <&blsp1_uart1_sleep>;
+		};
+
 		serial@78b0000 {
 			status = "okay";
 			pinctrl-names = "default", "sleep";