vendor: sepolicy update

-changes for sdcard (from CM)
-changes for exfat OTG

Change-Id: I617d0188d53797866b71db0dbcbfc27bf3e35aa1
diff --git a/sepolicy/mediaserver.te b/sepolicy/mediaserver.te
new file mode 100644
index 0000000..37c3537
--- /dev/null
+++ b/sepolicy/mediaserver.te
@@ -0,0 +1,6 @@
+###########################
+# OmniROM common sepolicy
+
+#exfat OTG
+allow mediaserver fuse_device:file { read getattr };
+