Fix type overflow in find_sensor
Fix type overflow in find_sensor

Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

Change-Id: I700c5847685b4432c1da42ec470860f1785b9abf

openbmc/phosphor-host-ipmid,openbmc/phosphor-host-ipmid,openbmc/phosphor-host-ipmid,causten/phosphor-host-ipmid,causten/phosphor-host-ipmid,causten/phosphor-host-ipmid