add sound trigger service library

Change-Id: I444396c5a1df13ad59c2a236849e9c729faed956
diff --git a/target/product/base.mk b/target/product/base.mk
index 1560ef4..981f965 100644
--- a/target/product/base.mk
+++ b/target/product/base.mk
@@ -71,6 +71,8 @@
     libskia \
     libsonivox \
     libsoundpool \
+    libsoundtrigger \
+    libsoundtriggerservice \
     libsqlite \
     libstagefright \
     libstagefright_amrnb_common \