Use DeviceIdVector for outputs in Audio Policy

Use DeviceIdVector for output in Audio Policy.

Bug: 367816690
Test: atest audiopolicy_tests
Test: adb shell /data/fuzz/arm64/audiopolicy_fuzzer/audiopolicy_fuzzer
Flag: android.media.audio.routed_device_ids
Change-Id: If2144348ff69e75fd4e6c339848d7d161ef5611d
diff --git a/media/libaudiofoundation/AudioContainers.cpp b/media/libaudiofoundation/AudioContainers.cpp
index 6727562..d0f77e8 100644
--- a/media/libaudiofoundation/AudioContainers.cpp
+++ b/media/libaudiofoundation/AudioContainers.cpp
@@ -130,7 +130,7 @@
     return ss.str();
 }
 
-std::string toString(const DeviceIdSet& deviceIds) {
+std::string toString(const DeviceIdVector& deviceIds) {
     if (deviceIds.empty()) {
         return "Empty device ids";
     }
@@ -144,11 +144,11 @@
     return ss.str();
 }
 
-audio_port_handle_t getFirstDeviceId(const DeviceIdSet& deviceIds) {
+audio_port_handle_t getFirstDeviceId(const DeviceIdVector& deviceIds) {
     if (deviceIds.empty()) {
         return AUDIO_PORT_HANDLE_NONE;
     }
-    return *(deviceIds.begin());
+    return deviceIds[0];
 }
 
 AudioProfileAttributesMultimap createAudioProfilesAttrMap(audio_profile profiles[],