arm/dt: msm8974: Add device tree node for low latency playback and capture

Add device tree node for low latency playback and capture
for 8974 target.

Change-Id: I80835c75d36cf0c4bad6f54c5d0917a855d24399
Signed-off-by: Phani Kumar Uppalapati <phanik@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974.dtsi b/arch/arm/boot/dts/msm8974.dtsi
index 78e5957..8138f20 100644
--- a/arch/arm/boot/dts/msm8974.dtsi
+++ b/arch/arm/boot/dts/msm8974.dtsi
@@ -670,6 +670,13 @@
 
 	qcom,msm-pcm {
 		compatible = "qcom,msm-pcm-dsp";
+		qcom,msm-pcm-dsp-id = <0>;
+	};
+
+	qcom,msm-pcm-low-latency {
+		compatible = "qcom,msm-pcm-dsp";
+		qcom,msm-pcm-dsp-id = <1>;
+		qcom,msm-pcm-low-latency;
 	};
 
 	qcom,msm-pcm-routing {