Adding e4crypt support

Add selinux rules to allow file level encryption to work

Change-Id: I1e4bba23e99cf5b2624a7df843688fba6f3c3209
diff --git a/file_contexts b/file_contexts
index 849cce0..406f566 100644
--- a/file_contexts
+++ b/file_contexts
@@ -188,6 +188,7 @@
 #
 /data(/.*)?		u:object_r:system_data_file:s0
 /data/.layout_version		u:object_r:install_data_file:s0
+/data/unencrypted(/.*)?         u:object_r:unencrypted_data_file:s0
 /data/backup(/.*)?		u:object_r:backup_data_file:s0
 /data/secure/backup(/.*)?	u:object_r:backup_data_file:s0
 /data/security(/.*)?	u:object_r:security_file:s0