init.local.rc: Tweak KSM values

* Taken from http://source.android.com/devices/low-ram.html#ksm

Change-Id: I91de2014d06a24aec4bdefefeff606867de33de1

prebuilt/common/etc/init.local.rc

@@ -87,8 +87,8 @@ on boot
     chmod 0664 /sys/kernel/mm/ksm/sleep_millisecs
     chown root system /sys/kernel/mm/ksm/run
     chmod 0664 /sys/kernel/mm/ksm/run
-    write /sys/kernel/mm/ksm/sleep_millisecs 1500
-    write /sys/kernel/mm/ksm/pages_to_scan 256
+    write /sys/kernel/mm/ksm/sleep_millisecs 500
+    write /sys/kernel/mm/ksm/pages_to_scan 100
 
     chown system system /dev/cpuctl/apps/cpu.notify_on_migrate
     chmod 0644 /dev/cpuctl/apps/cpu.notify_on_migrate