hwmon: (lm93) Use standard names for vid files

The lm93 driver doesn't follow the standard naming convention for its
vid files. Fix this so that libsensors will pick them.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>