move audio policy service to a separate library

Change-Id: I2612253148238e0cce12bd5a0effcb790e86e5f0
diff --git a/target/product/base.mk b/target/product/base.mk
index 657d88c..b0e5de8 100644
--- a/target/product/base.mk
+++ b/target/product/base.mk
@@ -41,6 +41,7 @@
     libandroid_servers \
     libaudioeffect_jni \
     libaudioflinger \
+    libaudiopolicy \
     libbundlewrapper \
     libcamera_client \
     libcameraservice \