allow vold_prepare_subdirs to create storaged directories

Test: Boot device, observe logs
Bug: 63740245
Change-Id: I1068304b12ea90736b7927b7368ba1a213d2fbae
diff --git a/private/file_contexts b/private/file_contexts
index 03bd889..ca0a696 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -396,6 +396,7 @@
 /data/misc/profman(/.*)?        u:object_r:profman_dump_data_file:s0
 
 # storaged proto files
+/data/misc_de/[0-9]+/storaged(/.*)?       u:object_r:storaged_data_file:s0
 /data/misc_ce/[0-9]+/storaged(/.*)?       u:object_r:storaged_data_file:s0
 
 # Fingerprint data