ARM: dts: qcom: msm8660: drop 2nd clock frequency from timer

The driver reads only one clock frequency, and the schema does not
allow more than one frequency here.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: David Heidelberg <david@ixit.cz>

arch/arm/boot/dts/qcom/qcom-msm8660.dtsi

@@ -109,8 +109,7 @@
 				     <1 1 0x301>,
 				     <1 2 0x301>;
 			reg = <0x02000000 0x100>;
-			clock-frequency = <27000000>,
-					  <32768>;
+			clock-frequency = <27000000>;
 			cpu-offset = <0x40000>;
 		};