Revert "Voltage Control: initial voltage control for 8960 krait"

This reverts commit db6d9250bd7ad7b56253484cf4429a620e79beef.
Fix with Kconfig

Signed-off-by: Javelin <javelinanddart@gmail.com>
updates

Signed-off-by: Javelin <javelinanddart@gmail.com>