fastcharge: Cleanup and fixes

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
fastcharge: initial Nexus 5 adaptation

added custom charge levels for better control over fastcharge

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

Conflicts:
	arch/arm/mach-msm/Makefile
	drivers/power/bq24192_charger.c

Change-Id: I5ca5af607df3c5304c8ce33623dd55819d945ccf