Add SELinux policy to allow testing of artd

Test: m ArtdIntegrationTests
Bug: 177273468
Change-Id: I087e70bee7539c755da15579edc164a3588dc31d
diff --git a/private/platform_app.te b/private/platform_app.te
index f746f1c..55ccbde 100644
--- a/private/platform_app.te
+++ b/private/platform_app.te
@@ -71,6 +71,12 @@
 # Allow platform apps to log via statsd.
 binder_call(platform_app, statsd)
 
+# Allow platform applications to find and call artd for testing
+userdebug_or_eng(`
+  allow platform_app artd_service:service_manager find;
+  binder_call(platform_app, artd)
+')
+
 # Access to /data/preloads
 allow platform_app preloads_data_file:file r_file_perms;
 allow platform_app preloads_data_file:dir r_dir_perms;