Voltage Control: initial voltage control for MSM Snapdragon 800 SOC

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
Voltage Control: add sysfs interface

Signed-off-by: faux123 <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
Increase voltage limits
CPU overclocking
L2 cache and bus bandwidth overclocking