Revert "Revert "Adding getModelState API to sound trigger""

This reverts commit 6dd21efefed9d570d5ce07f602686d01321795eb.

Reason for revert: rolling forward with fix

Change-Id: I07d6c471681abffeb596817dfb00de40c853560c
diff --git a/services/soundtrigger/Android.mk b/services/soundtrigger/Android.mk
index 3c7d29d..65f1a44 100644
--- a/services/soundtrigger/Android.mk
+++ b/services/soundtrigger/Android.mk
@@ -55,6 +55,7 @@
     libaudiohal_deathhandler \
     android.hardware.soundtrigger@2.0 \
     android.hardware.soundtrigger@2.1 \
+    android.hardware.soundtrigger@2.2 \
     android.hardware.audio.common@2.0 \
     android.hidl.allocator@1.0 \
     android.hidl.memory@1.0