Revert "Revert "msm: cpufreq: Remove unused msm_cpufreq_set_freq_limits() API""

This reverts commit 8e32ffad65fa4f06688bc240310f3cb1f3134f10.
Revert "msm_cpu_freq_limit: controlling MSM quadcore cpus"

This reverts commit b3596ec77e85f112c69442665bde1ff9db009a2b.