arm: dts: qcom: Add board clocks

These clocks are fixed rate board sources that should be in DT.
Add them.

Cc: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>

arch/arm/boot/dts/qcom-msm8960.dtsi

@@ -49,6 +49,29 @@ cpu-pmu {
 		qcom,no-pc-write;
 	};
 
+	clocks {
+		cxo_board {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <19200000>;
+			clock-output-names = "cxo_board";
+		};
+
+		pxo_board {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <27000000>;
+			clock-output-names = "pxo_board";
+		};
+
+		sleep_clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+			clock-output-names = "sleep_clk";
+		};
+	};
+
 	soc: soc {
 		#address-cells = <1>;
 		#size-cells = <1>;