msm: thermal: Make core control and PSM independent of cpu frequency

Updated the KTM to perform PMIC SW Mode(PSM) threshold monitoring
and core control independent of the CPU frequency table
initialization.

Change-Id: I45653ef3087830cc96326b8e770d826530b7fed5
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>