Cleanup: use binder_call macro.

Test: Compile.
Change-Id: Ic05ed96f50d5139b12a28565a0dc697476874a22
diff --git a/private/platform_app.te b/private/platform_app.te
index c255605..45de3cb 100644
--- a/private/platform_app.te
+++ b/private/platform_app.te
@@ -76,7 +76,7 @@
 binder_call(platform_app, gpuservice)
 
 # Allow platform apps to log via statsd.
-allow platform_app statsd:binder call;
+binder_call(platform_app statsd)
 
 # Access to /data/preloads
 allow platform_app preloads_data_file:file r_file_perms;