hwmon: (coretemp) Fix checkpatch error

Fix:
ERROR: Macros with complex values should be enclosed in parenthesis

Cc: Fenghua Yu <fenghua.yu@intel.com>
Acked-By: NDurgadoss R <durgadoss.r@intel.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

drivers/hwmon/coretemp.c

@@ -57,8 +57,8 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
 #define TOTAL_ATTRS		(MAX_CORE_ATTRS + 1)
 #define MAX_CORE_DATA		(NUM_REAL_CORES + BASE_SYSFS_ATTR_NO)
 
-#define TO_PHYS_ID(cpu)		cpu_data(cpu).phys_proc_id
-#define TO_CORE_ID(cpu)		cpu_data(cpu).cpu_core_id
+#define TO_PHYS_ID(cpu)		(cpu_data(cpu).phys_proc_id)
+#define TO_CORE_ID(cpu)		(cpu_data(cpu).cpu_core_id)
 #define TO_ATTR_NO(cpu)		(TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO)
 
 #ifdef CONFIG_SMP