ARM: dts: msm: add qcom,subsys-name for apr

Add qcom,subsys-name for apr. This property enables
apr to receive subsystem up/down notification from
modem/adsp.

Change-Id: I1ccdab965b7a97322523bd5ecae2ee937ecb6e18
Signed-off-by: Meng Wang <mengw@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/msm-audio-lpass.dtsi b/arch/arm64/boot/dts/qcom/msm-audio-lpass.dtsi
index 9467297..13e5187 100644
--- a/arch/arm64/boot/dts/qcom/msm-audio-lpass.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm-audio-lpass.dtsi
@@ -304,6 +304,7 @@
 
 	audio_apr: qcom,msm-audio-apr {
 		compatible = "qcom,msm-audio-apr";
+		qcom,subsys-name = "apr_adsp";
 	};
 
 	dai_pri_auxpcm: qcom,msm-pri-auxpcm {