Converting sound trigger v2.2 getModelState to be asynchronous

Test: built android with checkbuild flag

Change-Id: Ic12dbfe46aae08666ab02a1a8ee0dbb5c2d9381f
Bug-Id: 70206501
diff --git a/soundtrigger/SoundTrigger.cpp b/soundtrigger/SoundTrigger.cpp
index bb0650f..d1eb367 100644
--- a/soundtrigger/SoundTrigger.cpp
+++ b/soundtrigger/SoundTrigger.cpp
@@ -188,14 +188,13 @@
     return mISoundTrigger->stopRecognition(handle);
 }
 
-status_t SoundTrigger::getModelState(sound_model_handle_t handle,
-                                     sp<IMemory>& eventMemory)
+status_t SoundTrigger::getModelState(sound_model_handle_t handle)
 {
     Mutex::Autolock _l(mLock);
     if (mISoundTrigger == 0) {
         return NO_INIT;
     }
-    return mISoundTrigger->getModelState(handle, eventMemory);
+    return mISoundTrigger->getModelState(handle);
 }
 
 // BpSoundTriggerClient