fix security issues

Signed-off-by: Nzhangfeng <hw.zhangfeng@huawei.com>
Change-Id: I173e35d17c2f7ac6aa56451d2c290bcf2ae82f0d

services/etc/init.cfg

@@ -245,9 +245,9 @@
                 "mkdir /data/misc/vpn 0770 system vpn",
                 "mkdir /data/misc/shared_relro 0771 shared_relro shared_relro",
                 "mkdir /data/misc/systemkeys 0700 system system",
-                "mkdir /data/misc/wifi 0770 wifi wifi",
-                "mkdir /data/misc/wifi/sockets 0770 wifi wifi",
-                "mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi",
+                "mkdir /data/misc/wifi 0770 system system",
+                "mkdir /data/misc/wifi/sockets 0770 system system",
+                "mkdir /data/misc/wifi/wpa_supplicant 0660 system system",
                 "mkdir /data/misc/ethernet 0770 system system",
                 "mkdir /data/misc/dhcp 0770 dhcp dhcp",
                 "mkdir /data/misc/user 0771 root root",