Revert "mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas"

This reverts commit 2d140983b007b70dfe673af76fec5edbb9f511b1.

Change-Id: Id309386cd8d29efa8c62d95834d6d4dceed0c9a2
cpufreq: intelliactive: initial coding and introduction!

intelliactive is based on Latest Google Interactive cpufreq governor from
Google.  The original Interactive provides smooth UI operations but suffers
slight battery drain due to its aggressive policies.  Intelliactive is an
improvement built on top of it.

It has the following enhancements added:
1. self-boost capability from input drivers (no need for PowerHAL assist)
2. two phase scheduling (idle/busy phases to prevent from jumping directly to
   max freq
3. Checks for offline cpus and short circuits some unnecessary checks to
   improve code execution paths
4. removed trace calls

Change-Id: I6d2c1c2abdd6220519362ebe646ba46c49f34da3
Signed-off-by: Paul Reioux <reioux@gmail.com>
intelliactive: fix race condition when unregistering input handlers

Signed-off-by: Paul Reioux <reioux@gmail.com>
intelliactive: add upstream patches

Signed-off-by: Paul Reioux <reioux@gmail.com>
intelliactive: make touch boost interface generic

Signed-off-by: Paul Reioux <reioux@gmail.com>