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/bootanim.te b/private/bootanim.te
index fd95e41..41c9179 100644
--- a/private/bootanim.te
+++ b/private/bootanim.te
@@ -5,5 +5,8 @@
 # b/68864350
 dontaudit bootanim unlabeled:dir search;
 
+# Bootanim should not be reading default vendor-defined properties.
+dontaudit bootanim vendor_default_prop:file read;
+
 # Read ro.boot.bootreason b/30654343
 get_prop(bootanim, bootloader_boot_reason_prop)