GpuStats: sepolicy change for using new statsd puller api

Bug: 148421389
Test: statsd_testdrive 10054
Change-Id: Icf1a4bf809b1413c0e413290bbeadd987faff710
diff --git a/private/gpuservice.te b/private/gpuservice.te
index 9e17d06..b8a365a 100644
--- a/private/gpuservice.te
+++ b/private/gpuservice.te
@@ -35,6 +35,10 @@
 allow gpuservice dumpstate:fd use;
 allow gpuservice dumpstate:fifo_file write;
 
+# Needed for stats callback registration to statsd.
+allow gpuservice stats_service:service_manager find;
+binder_call(gpuservice, statsd);
+
 add_service(gpuservice, gpu_service)
 
 # Only uncomment below line when in development