gta4xl-common: downgrade soundtrigger hal to 2.0

* Stock blobs don't seem to support > 2.0

Change-Id: I371ab7f7617235a695f1b47b691a88c1467f7bdb
diff --git a/platform/product_packages.mk b/platform/product_packages.mk
index a948647..7146e04 100644
--- a/platform/product_packages.mk
+++ b/platform/product_packages.mk
@@ -145,8 +145,7 @@
 
 ### SOUNDTRIGGER
 PRODUCT_PACKAGES += \
-    android.hardware.soundtrigger@2.2-impl \
-    android.hardware.soundtrigger@2.0-service
+    android.hardware.soundtrigger@2.0-impl
 
 ### THERMAL
 PRODUCT_PACKAGES += \