sepolicy: Put theme service in its own context

Allow the theme manager and its data to be sandboxed in
its own context

Change-Id: I7898663d1c196bfe04fa4c539d20191a43fde284
diff --git a/sepolicy/file_contexts b/sepolicy/file_contexts
index 706c84a..bcc9217 100644
--- a/sepolicy/file_contexts
+++ b/sepolicy/file_contexts
@@ -7,7 +7,7 @@
 /data/misc/audit(/.*)?    u:object_r:auditd_log:s0
 
 # Themes
-/data/system/theme(/.*)?  u:object_r:theme_data_file:s0
+/data/system/theme(/.*)?  u:object_r:themeservice_app_data_file:s0
 
 /system/bin/sysinit       u:object_r:sysinit_exec:s0