Enable KSM by default for all devices

Change-Id: Ifef16919b1cd2013184bb105d33655bee05d7edf
Revert "Enable KSM by default for all devices"

This reverts commit f381e2cc6a92072e432bafbbaf7346699ee25853.

Change-Id: If9720d3dde6d20884f40ebbdbc370910bcc688df