Adding parameters to delay fence based on host's load

Before performing fencing to host, we wait TimeoutToResetVdsInSeconds.

This patch adds a formula based on vms count and SPM status that
calculates different timeout period before starting the fence.

Change-Id: I69c15b254cb5323416aaa33756866218870056d2
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=924801
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>