Add args to Witherspoon power supply monitor

These arguments are needed to allow the application
to collect the input power history and put it
on D-Bus.

The new arguments include:
* The number of average and maximum power records
  to keep in D-Bus.
* GPIO information for the GPIO used to send the
  sync command to the power supplies to have them
  restart their history recording.

Change-Id: Id25cf1daa6ba070b773b49308a54ba51c0839980
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
3 files changed