storaged: allow storaged to access /data/misc/storaged directory

storaged will use this directory to store internal data files.

Bug: 63740245
Change-Id: Ie77961c2b398cc464b7199d3acbcc6287312d3b4
diff --git a/private/storaged.te b/private/storaged.te
index 20377e0..8da1f26 100644
--- a/private/storaged.te
+++ b/private/storaged.te
@@ -15,6 +15,10 @@
 # Read /data/system/packages.list
 allow storaged system_data_file:file r_file_perms;
 
+# Store storaged proto file
+allow storaged storaged_data_file:dir rw_dir_perms;
+allow storaged storaged_data_file:file create_file_perms;
+
 userdebug_or_eng(`
   # Read access to debugfs
   allow storaged debugfs_mmc:dir search;