thermal/drivers/hisi: Convert long to int

There is no point to specify the temperature as long variable, the int is
enough.

Replace all long variables to int, so making the code consistent.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: NLeo Yan <leo.yan@linaro.org>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

drivers/thermal/hisi_thermal.c

@@ -85,12 +85,12 @@ static inline int hisi_thermal_step_to_temp(int step)
 	return HISI_TEMP_BASE + (step * HISI_TEMP_STEP);
 }
 
-static inline long hisi_thermal_temp_to_step(long temp)
+static inline int hisi_thermal_temp_to_step(int temp)
 {
 	return (temp - HISI_TEMP_BASE) / HISI_TEMP_STEP;
 }
 
-static inline long hisi_thermal_round_temp(int temp)
+static inline int hisi_thermal_round_temp(int temp)
 {
 	return hisi_thermal_step_to_temp(
 		hisi_thermal_temp_to_step(temp));