Adopt the use of shared buffers.

Bug: 37001948
Test: Make system image
Change-Id: I032574f250e0f0fe7768af649730406e24d853db
diff --git a/services/vr/hardware_composer/Android.bp b/services/vr/hardware_composer/Android.bp
index 5cb201d..9201520 100644
--- a/services/vr/hardware_composer/Android.bp
+++ b/services/vr/hardware_composer/Android.bp
@@ -7,6 +7,7 @@
   ],
 
   static_libs: [
+    "libbroadcastring",
     "libhwcomposer-client",
     "libdisplay",
     "libbufferhubqueue",