Remove tc1/tc2 in generic thermal layer.
.get_trend() callback starts to take effect from this patch.
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Reviewed-by: NRafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: NValentin, Eduardo <eduardo.valentin@ti.com>