Revert "Revert "msm: thermal: Clean up msm cpufreq function calls""

Issue is identified due to low current limit setting from the
power supply, not caused by the original patch that is reverted.

This reverts commit 9cd5b7fb425c4e624d06284c901c073d3d5ced5c

Change-Id: I179243e93cb320426982a7c03851b55f5463892e
Signed-off-by: Jennifer Liu <chihning@codeaurora.org>