Voltage Control: add sysfs interface

Signed-off-by: faux123 <reioux@gmail.com>
Makefile: add some optimization flags for ARM

Signed-off-by: faux123 <reioux@gmail.com>

Conflicts:

	Makefile
jf: vzw: increase temp_degC to 75 if OC

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
krait-defines: create a new common header file shared used by various drivers

code to help organize common MACRO definitions into 1 file

Signed-off-by: Paul Reioux <reioux@gmail.com>
overclocking: make 2.1+ GHz a separate compilation switch

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