hwmon: normal_i2c arrays should be const

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index f7ec95b..d1a3da3 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -101,10 +101,8 @@
  * 0x4c, 0x4d or 0x4e.
  */
 
-static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a,
-				       0x29, 0x2a, 0x2b,
-				       0x4c, 0x4d, 0x4e,
-				       I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = {
+	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
 
 /*
  * Insmod parameters