rewrite Reset Watchdog Timer command to use new provider API

Modify to use the new provider API. One by one, change calls to
remove any legacy API constructs.

Tested-by: ipmitool mc watchdog get
           ipmitool mc watchdog off
	   ipmitool mc watchdog reset

Change-Id: If6cd1d921908dc7f5462e99b0098b4897e743ebb
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
3 files changed