Revert "build fix"

This reverts commit 5fd1346f2ebee88d2e2132a826efe32b4b348ac2.
Revert "ksm: check and skip page, if it is already scanned"

This reverts commit 90fee5b81c6ff98ceecdcacc7ba23e647e66c6f5.
update defconfig:
turned on conservative governor
added TCP control
enabled earlysuspend cpu boost
enabled HTC's ksm page checker