Revert "Revert "Revert CPU_OC""

This reverts commit 25bb8e7d7c99247d345497c26151cc7aa8796aa2.
dts: msm8974pro: overclocking tweak for 3.2 GHz
cpufreq_limit: updated default cpu freq to new OC table
Add GPU OC to 644 MHz and idle on 120MHz