sdm845: Update sound trigger HIDL version to 2.1

Sound trigger HIDL interface supports loading of more
than 1MB sound models from 2.1 version. Update to use HIDL
version 2.1.

Change-Id: Iae4c277d7b5ac502331b6e9fcad214562b897fc0
diff --git a/configs/sdm845/sdm845.mk b/configs/sdm845/sdm845.mk
index 3b82404..a6bb9d6 100644
--- a/configs/sdm845/sdm845.mk
+++ b/configs/sdm845/sdm845.mk
@@ -240,4 +240,4 @@
     android.hardware.audio@2.0-service \
     android.hardware.audio@2.0-impl \
     android.hardware.audio.effect@2.0-impl \
-    android.hardware.soundtrigger@2.0-impl
+    android.hardware.soundtrigger@2.1-impl