hwmon: (max6639) Make normal_i2c array const

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/max6639.c

@@ -35,7 +35,7 @@
 #include <linux/i2c/max6639.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END };
 
 /* The MAX6639 registers, valid channel numbers: 0, 1 */
 #define MAX6639_REG_TEMP(ch)			(0x00 + (ch))