enable selinux in settings

Change-Id: I5c5f3a95e6d9a639c203cdad9b686e816c12ab67
diff --git a/config/common.mk b/config/common.mk
index 343c0a5..0237f50 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -10,6 +10,9 @@
     ro.com.android.dateformat=MM-dd-yyyy \
     ro.com.android.dataroaming=false
 
+PRODUCT_PROPERTY_OVERRIDES += \
+    ro.build.selinux=1
+
 # Backup Tool
 PRODUCT_COPY_FILES += \
     vendor/slim/prebuilt/common/bin/backuptool.sh:system/bin/backuptool.sh \