fastcharge: increase battery charging current to use higher input current

Signed-off-by: Paul Reioux <reioux@gmail.com>
fastcharge: initial Nexus 5 adaptation

added custom charge levels for better control over fastcharge

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Chester Kener <Cl3Kener@gmail.com>

Conflicts:
	arch/arm/mach-msm/Makefile
fastcharge: New enhancements

* Add 1800 mA level
* Add "fake_charge_ac" hack. If fast charge is on with fake_charge_ac = 1,
  device will show current source as AC instead of USB.
* By default, fake_charge_ac is disabled.

Sincere thanks to mankindtw@xda for idea.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
fastcharge: Cleanup and fixes

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Defconfig: Fix BFQ derp in defconfig