!741 在boot阶段初始化1g zram 挑单到Openharmon-3.2-Beta1

Merge pull request !741 from fanchengyang/zram-init-beta

services/etc/init.cfg

@@ -198,6 +198,9 @@
         }, {
             "name" : "boot",
             "cmds" : [
+                "write /sys/block/zram0/disksize 1024M",
+                "mkswap /dev/block/zram0",
+                "swapon /dev/block/zram0",
                 "write /proc/sys/net/core/xfrm_acq_expires 3600",
                 "write /proc/sys/vm/overcommit_memory 1",
                 "write /proc/sys/vm/min_free_order_shift 4",