fix sensor scales for HWMON devices

- should only use exponential (10^x) scaling
- purpose of the scale is to identify units
- need adjustment factor for some sensors; internal use only

depends on Id4e1dfad0def21f9f1d341d859c3b2c237dea080

resolves openbmc/openbmc#412

Change-Id: Iaf2d5e30df620212dd3c9e821d6462964520dc44
Signed-off-by: Edward A. James <eajames@us.ibm.com>
6 files changed