Update audio services for 64 bit compilation

audioserver still runs in 32 bits

Bug: 27479136
Change-Id: I99ac607e4ce006a87abc2a3f838023e00ef78647
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index 302e4dc..0112e56 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -60,8 +60,9 @@
     libcpustats \
     libmedia_helper
 
+LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
+
 LOCAL_MODULE:= libaudioflinger
-LOCAL_32_BIT_ONLY := true
 
 LOCAL_SRC_FILES += \
     AudioWatchdog.cpp        \