Sepolicy: Allow stack dumps of statsd

Allow dumpstate & system server watchdog to dump statsd stacks.

Bug: 72461610
Test: m
Change-Id: I4c3472881da253f85d54b5e5b767b06e2618af9c
diff --git a/private/system_server.te b/private/system_server.te
index 642c8bd..f8f5e3e 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -239,6 +239,7 @@
   mediaserver
   mediametrics
   sdcardd
+  statsd
   surfaceflinger
 
   # This list comes from HAL_INTERFACES_OF_INTEREST in