[PATCH] HWMON: Trim VID values to correct number of bits

Following patch trims the VID value to correct number of bits
for each VRM.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>