init.local.rc: Tweak KSM values

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

Change-Id: I91de2014d06a24aec4bdefefeff606867de33de1
enable init tweaks by default

Change-Id: I104a919cb3ef86209b61e65792d78adc8a5a28d2
Merge pull request #2 from deedwar/beanstalk-kitkat2

Beanstalk kitkat2