Update Kconfig

msm: clock-krait-8974: User voltage control for msm-cpufreq device (patch1)
Update cpufreq.c

msm: clock-krait-8974: User voltage control for msm-cpufreq device (patch2)
Update cpufreq.c

msm: clock-krait-8974: User voltage control for msm-cpufreq device (patch3)
Update clock-krait-8974.c

msm: clock-krait-8974: User voltage control for msm-cpufreq device (patch4)
Update cyanogenmod_hammerhead_defconfig

Defconfig: enable voltage control (patch5)
Merge pull request #2 from vmkogeretla/uvtest

CONFIG_MSM_CPU_VOLTAGE_CONTROL