thermal: tsens8974: Fix div0 temperature warnings

Fix reporting temperature when using two point calibration.
Slope is calculate using code/degC.

Change-Id: I7d9b99f68d89c5d7e068737d5a4079985328a844
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
1 file changed