Merge "system_server: search permission to all of sysfs."

private/system_server.te

@@ -267,6 +267,8 @@ allow system_server mac_perms_file: file r_file_perms;
 # Check SELinux permissions.
 selinux_check_access(system_server)
 
+allow system_server sysfs_type:dir search;
+
 r_dir_file(system_server, sysfs_android_usb)
 allow system_server sysfs_android_usb:file w_file_perms;