ARM: dts: qcom: add gsbi7 serial to ipq8064 SoC device tree

The gsbi_serial7 under gsbi7 is used by the IPQ8068 based board EWS870AP as
main serial console.
Signed-off-by: NSven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm/boot/dts/qcom-ipq8064.dtsi

@@ -284,6 +284,29 @@
 			};
 		};
 
+		gsbi7: gsbi@16600000 {
+			status = "disabled";
+			compatible = "qcom,gsbi-v1.0.0";
+			cell-index = <7>;
+			reg = <0x16600000 0x100>;
+			clocks = <&gcc GSBI7_H_CLK>;
+			clock-names = "iface";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			syscon-tcsr = <&tcsr>;
+
+			gsbi7_serial: serial@16640000 {
+				compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
+				reg = <0x16640000 0x1000>,
+				      <0x16600000 0x1000>;
+				interrupts = <0 158 0x0>;
+				clocks = <&gcc GSBI7_UART_CLK>, <&gcc GSBI7_H_CLK>;
+				clock-names = "core", "iface";
+				status = "disabled";
+			};
+		};
+
 		sata_phy: sata-phy@1b400000 {
 			compatible = "qcom,ipq806x-sata-phy";
 			reg = <0x1b400000 0x200>;