audio: add API for querying the Ultrasound support

Bug: 200256985
Test: Check the return value with/without the Ultrasound
Output/Input in audio_policy_configuration.xml
Signed-off-by: Carter Hsu <carterhsu@google.com>
Change-Id: I681491bc21788e7eb75a052025a3feed89033524
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index a30768a..63ea8c3 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -2058,6 +2058,17 @@
     return Status::ok();
 }
 
+Status AudioPolicyService::isUltrasoundSupported(bool* _aidl_return)
+{
+    if (mAudioPolicyManager == NULL) {
+        return binderStatusFromStatusT(NO_INIT);
+    }
+    Mutex::Autolock _l(mLock);
+    AutoCallerClear acc;
+    *_aidl_return = mAudioPolicyManager->isUltrasoundSupported();
+    return Status::ok();
+}
+
 Status AudioPolicyService::listAudioProductStrategies(
         std::vector<media::AudioProductStrategy>* _aidl_return) {
     AudioProductStrategyVector strategies;