Make iptables -L and -S calls wait for xtables lock

(cherry picked from commit 99b40503edccae74d0917b9d1e17a5939ac7193b)

Bug:22802665
Change-Id: Ief59212ab976af940887508fab706b5be07005c6
1 file changed
tree: 7cd59c5b96c34d1d2d60a00758a38b51e60d3504
  1. client/
  2. include/
  3. server/
  4. Android.mk