drm/amd/pp: Fix set wrong temperature range on smu7

Fix the issue thermal irq was always triggered
as GPU under temperature range detected

The low temp in default thermal policy
was set to -273. so need to use int type for the low temp.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c

@@ -308,7 +308,7 @@ int smu7_thermal_get_temperature(struct pp_hwmgr *hwmgr)
 * @exception PP_Result_BadInput if the input data is not valid.
 */
 static int smu7_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
-		uint32_t low_temp, uint32_t high_temp)
+		int low_temp, int high_temp)
 {
 	int low = SMU7_THERMAL_MINIMUM_ALERT_TEMP *
 			PP_TEMPERATURE_UNITS_PER_CENTIGRADES;