Revert "Intelli memory writeback - 0 when screen ON & 500ms when screen off"

This reverts commit 561e14c4f6553e99a7a5d2f666c5db4f5fb1581e.
mms_ts: Add sys interface to allow switching of touch boost
off or on (default)
Merge branch 'test' of github.com:temasek/android_kernel_samsung_smdk4412 into test
Merge branch 'test' of github.com:temasek/android_kernel_samsung_smdk4412 into boeffla