hwmon: normal_i2c arrays should be const

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c
index 03ecdc3..8984ef1 100644
--- a/drivers/hwmon/gl520sm.c
+++ b/drivers/hwmon/gl520sm.c
@@ -39,7 +39,7 @@
 MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)");
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_1(gl520sm);