hwmon: normal_i2c arrays should be const

drivers/hwmon/ad7418.c

drivers/hwmon/adm1021.c

drivers/hwmon/adm1025.c

drivers/hwmon/adm1026.c

drivers/hwmon/adm1029.c

drivers/hwmon/adm1031.c

drivers/hwmon/adm9240.c

drivers/hwmon/ads7828.c

drivers/hwmon/adt7470.c

drivers/hwmon/adt7473.c

drivers/hwmon/asb100.c

drivers/hwmon/atxp1.c

drivers/hwmon/dme1737.c

drivers/hwmon/ds1621.c

drivers/hwmon/f75375s.c

drivers/hwmon/fscher.c

drivers/hwmon/fschmd.c

drivers/hwmon/fscpos.c

drivers/hwmon/gl518sm.c

drivers/hwmon/gl520sm.c