hwmon: (lm63) Fix incorrect comment about I2C address

What was true of the LM63 doesn't apply to the LM64.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NGuenter Roeck <guenter.roeck@ericsson.com>

drivers/hwmon/lm63.c

@@ -51,7 +51,10 @@
 
 /*
  * Addresses to scan
- * Address is fully defined internally and cannot be changed.
+ * Address is fully defined internally and cannot be changed except for
+ * LM64 which has one pin dedicated to address selection.
+ * LM63 and LM96163 have address 0x4c.
+ * LM64 can have address 0x18 or 0x4e.
  */
 
 static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END };