Allow dumpstate to write into privileged apps private files

Bug: 123006652
Bug: 111441001
Fix: 123006652
Test: Wrote a test app using BugreportManager, checked denials in logcat
Change-Id: Id1c4b1d166bc70aec833c3d644e8aea6ae94c35a
diff --git a/public/dumpstate.te b/public/dumpstate.te
index 39ef87d..0991bed 100644
--- a/public/dumpstate.te
+++ b/public/dumpstate.te
@@ -41,6 +41,9 @@
 # TODO: scope this down.
 allow dumpstate system_data_file:file r_file_perms;
 
+# Allow dumpstate to append into privileged apps private files.
+allow dumpstate privapp_data_file:file append;
+
 # Read dmesg
 allow dumpstate self:global_capability2_class_set syslog;
 allow dumpstate kernel:system syslog_read;