Reduce graphics logspam

There is no change in behavior. These denials were already
being blocked.

Bug: 79617173
Test: build
Change-Id: Iffd1e5ba42854615eeea9490fe9150678ac98796
diff --git a/private/app.te b/private/app.te
index 5590ca5..a03bcb0 100644
--- a/private/app.te
+++ b/private/app.te
@@ -19,6 +19,8 @@
 # Attempting to do so will be blocked by both selinux and unix
 # permissions.
 dontaudit appdomain system_data_file:dir write;
+# Apps should not be reading vendor-defined properties.
+dontaudit appdomain vendor_default_prop:file read;
 
 neverallow appdomain system_server:udp_socket {
         accept append bind create ioctl listen lock name_bind