audio: correct the boundary of soundtrigger index

Bug: 129111371
Test: manual
Change-Id: Ic3e2d5b8b6b53be2184307b076ba8680c6f81a29
Signed-off-by: Carter Hsu <carterhsu@google.com>
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index c0ca440..084fbf1 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -2025,7 +2025,7 @@
                 device->getId() : AUDIO_PORT_HANDLE_NONE;
 
     isSoundTrigger = attributes.source == AUDIO_SOURCE_HOTWORD &&
-        mSoundTriggerSessions.indexOfKey(session) > 0;
+        mSoundTriggerSessions.indexOfKey(session) >= 0;
     *portId = AudioPort::getNextUniqueId();
 
     clientDesc = new RecordClientDescriptor(*portId, riid, uid, session, attributes, *config,