msm-core: fix a missing scaling_factor

When thermal_core notified tsens temperatures to msm-core,
unit is mC, but msm-core plays with C, need to divide with scaling_factor
otherwise, it set a big CONFIGURABLE_LOW threshold which has impossible
to be clear.

Change-Id: I0e3d8a0f7ff087a3b5503d4b9b7f367be4cff011
Signed-off-by: Cheonho Park <cheonhop@codeaurora.org>