Revert "USB force fast charging"

-Use base from Chad Froebel <chadfroebel@gmail.com> so we continue to
use the same generic sysfs mechanism

-Referenced franco's git for drivers/usb/otg/msm_otg.c changes
https://github.com/franciscofranco/mako/commit/5a8a4c8e23c7e1df39c740b9ce1d5dda20b0ede3

Off by default

Turn on:
echo 1 > /sys/kernel/fast_charge/force_fast_charge

Turn off:
echo 0 > /sys/kernel/fast_charge/force_fast_charge

Signed-off-by: Paul Reioux <reioux@gmail.com> (reverted from commit d5d4b501eb391e0507a4e46bf241298332377943)

Conflicts:
	arch/arm/mach-msm/Makefile
fastcharge: initial Nexus 5 adaptation

added custom charge levels for better control over fastcharge

Signed-off-by: Paul Reioux <reioux@gmail.com>
Fix new FFC implement