Let users with SYSTEM permission set debug. properties

Change-Id: Ieda3f7dd5dca5f6a8fc50b07822e6a875db030ad
diff --git a/init/property_service.c b/init/property_service.c
index 0e3c25b..79914cd 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -78,6 +78,7 @@
     { "wlan.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_DHCP,     0 },
+    { "debug.",           AID_SYSTEM,   0 },
     { "debug.",           AID_SHELL,    0 },
     { "log.",             AID_SHELL,    0 },
     { "service.adb.root", AID_SHELL,    0 },