thermal: sti: Add parentheses around bridge->ops->regmap_init call

regmap_init(...) is a macro since commit
"regmap: Use different lockdep class for each regmap init call".
That same name is used as a function pointer: prevent its expansion
by adding parentheses around the function pointer.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index 76c515d..88c759d 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -214,7 +214,7 @@
 
 	sensor->ops = sensor->cdata->ops;
 
-	ret = sensor->ops->regmap_init(sensor);
+	ret = (sensor->ops->regmap_init)(sensor);
 	if (ret)
 		return ret;