bluetooth: add property permission for bluetooth

add property permission for bluetooth.

Change-Id: I099f325f533d06c63ad43843dd6477ea81fc9781
diff --git a/init/property_service.c b/init/property_service.c
index 79914cd..4ee86c0 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -76,6 +76,7 @@
     { "sys.",             AID_SYSTEM,   0 },
     { "service.",         AID_SYSTEM,   0 },
     { "wlan.",            AID_SYSTEM,   0 },
+    { "bluetooth.",       AID_SYSTEM,   0 },
     { "dhcp.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_DHCP,     0 },
     { "debug.",           AID_SYSTEM,   0 },