ARM: dts: ifc6410: Add missing pinctrl to gsbi7 uart

This patch adds missing 2pin uart pinctrl property to gsbi7 uart on
IFC6410.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>

arch/arm/boot/dts/qcom-apq8064-ifc6410.dts

@@ -154,6 +154,8 @@ gsbi@16600000 {
 			qcom,mode = <GSBI_PROT_I2C_UART>;
 			serial@16640000 {
 				status = "ok";
+				pinctrl-names = "default";
+				pinctrl-0 = <&gsbi7_uart_2pins>;
 			};
 		};