sepolicy: allow shell to read/write traced prop

This is to fix the CTS failures given by the bugs below where devices
where traced is not enabled by default causes test failures.

Bug: 78215159
Bug: 78347829
Change-Id: Ib0f6a1cdb770528dbbeb857368534ff5040e464e
diff --git a/private/property_contexts b/private/property_contexts
index ecde9d3..4433bdf 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -59,6 +59,7 @@
 persist.service.        u:object_r:system_prop:s0
 persist.service.bdroid. u:object_r:bluetooth_prop:s0
 persist.security.       u:object_r:system_prop:s0
+persist.traced.enable   u:object_r:traced_enabled_prop:s0
 persist.vendor.overlay.  u:object_r:overlay_prop:s0
 ro.boot.vendor.overlay.  u:object_r:overlay_prop:s0
 ro.boottime.             u:object_r:boottime_prop:s0