OOB inspection timeout fix for iDRAC

Make inspection timeout configurable to fix iDRAC driver out of band
inspection intermittent timeout issue for idrac-wsman and idrac-redfish
inspect interface.
For idrac, at least 20 seconds is recommended to be set for inspect
timeout for successful execution of OOB inspection.

Change-Id: Ibdf78d0669d0afb43d32bb71e7710145ffb7c05e
2 files changed