vendor: split sepolicy

Change-Id: Ib91027fd9034c7f6446ccdf3862bb4a370b43e0d
diff --git a/sepolicy/sepolicy.mk b/sepolicy/sepolicy.mk
index f5f972c..f4bab81 100644
--- a/sepolicy/sepolicy.mk
+++ b/sepolicy/sepolicy.mk
@@ -4,4 +4,6 @@
 #
 
 BOARD_SEPOLICY_DIRS += \
-    vendor/omni/sepolicy
+    vendor/omni/sepolicy/common
+
+BOARD_PLAT_PRIVATE_SEPOLICY_DIR += vendor/omni/sepolicy/private