Update SELinux policy to allow artd to perform secondary dex compilation

Secondary dex files are in app data directories. In order to perform
secondary dex compilation, artd needs permissions to:
- Read secondary dex files
- Create "oat" dir
- Create a reference profile in "oat" dir
- Rename the reference profile
- Delete the reference profile
- Read the current profile in "oat" dir
- Delete the current profile
- Create compilation artifacts in "oat" dir
- Rename compilation artifacts
- Delete compilation artifacts

Bug: 249984283
Test: -
  1. adb shell pm art optimize-package --secondary-dex -m speed-profile -f com.google.android.gms
  2. See no SELinux denial.
Change-Id: I19a0ea7895a54c67959b22085de27d1d0ccc1efc
diff --git a/private/mlstrustedsubject.te b/private/mlstrustedsubject.te
index 0aed4d3..67bd113 100644
--- a/private/mlstrustedsubject.te
+++ b/private/mlstrustedsubject.te
@@ -6,16 +6,19 @@
 
 neverallow {
   mlstrustedsubject
+  -artd # compile secondary dex files
   -installd
 } { app_data_file privapp_data_file }:file ~{ read write map getattr ioctl lock append };
 
 neverallow {
   mlstrustedsubject
+  -artd # compile secondary dex files
   -installd
 } { app_data_file privapp_data_file }:dir ~{ read getattr search };
 
 neverallow {
   mlstrustedsubject
+  -artd # compile secondary dex files
   -installd
   -system_server
   -adbd