thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()

This condition is reversed and will cause breakage.

Fixes: 7440f518 ("thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200616091949.GA11940@mwanda

drivers/thermal/ti-soc-thermal/ti-thermal-common.c

@@ -169,7 +169,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (!IS_ERR_OR_NULL(data))
+	if (IS_ERR_OR_NULL(data))
 		data = ti_thermal_build_data(bgp, id);
 
 	if (!data)