seplicy: fix io scheduler sysfs access for PC

files under /dev/block are symlinks so also add
the plain failes to the context

Change-Id: I1e3fd3dbb198265e94cba014c6fad969abfc620f
diff --git a/sepolicy/init.te b/sepolicy/init.te
new file mode 100644
index 0000000..853faa2
--- /dev/null
+++ b/sepolicy/init.te
@@ -0,0 +1,6 @@
+###########################
+# OmniROM common sepolicy
+#
+
+# damn!
+allow init sysfs_ioscheduler:file rw_file_perms;