Allow system server to record its own profile

On userdebug builds we can now profile system server without disabling
selinux. This is the final piece, and allows the system server to save its
own profile.

Test: manual, on a device with system server profiling enabled
Bug: 73313191
Change-Id: Iaf9575d3cda19ae4c38f1e20a8e1b9288b7abc83

private/system_server.te

@@ -773,9 +773,14 @@ allow system_server netd:bpf map_read;
 # Allow system_server to open profile snapshots for read.
 # System server never reads the actual content. It passes the descriptor to
 # to privileged apps which acquire the permissions to inspect the profiles.
-allow system_server user_profile_data_file:dir { search };
+allow system_server user_profile_data_file:dir { getattr search };
 allow system_server user_profile_data_file:file { getattr open read };
 
+# On userdebug build we may profile system server. Allow it to write and create its own profile.
+userdebug_or_eng(`
+  allow system_server user_profile_data_file:file create_file_perms;
+')
+
 userdebug_or_eng(`
   # Allow system server to notify mediaextractor of the plugin update.
   allow system_server mediaextractor_update_service:service_manager find;