Add persist.sysui.notification.builder_extras_ovrd

Adds persist.sysui.notification.builder_extras_override property
associated permissions, which will be used to flag guard
a change in core/...Notification.java.

Original change I3f7e2220798d22c90f4326570732a52b0deeb54d didn't
cover zygote, which are needed for preloaded classes

Test: manual flash+adb setprop/getprop
Bug: 169435530
Change-Id: Ifad9e7c010554aa6a1e1822d5885016058c801c9
diff --git a/private/sdk_sandbox.te b/private/sdk_sandbox.te
index fc4fce3..4806e6d 100644
--- a/private/sdk_sandbox.te
+++ b/private/sdk_sandbox.te
@@ -92,6 +92,7 @@
     -pan_result_prop
     -permissive_mte_prop
     -persist_debug_prop
+    -persist_sysui_builder_extras_prop
     -pm_prop
     -powerctl_prop
     -property_service_version_prop