Ping GetTimerPeriod API returns sometime zero value when
StallCounter has smaller value than RttTimerTick (divide by zero)
which results some failure at ping UEFI shell command
Signed-off-by: MohammedX Rehan <mohammedx.rehan@intel.com> Reviewed-by: Zhichao Gao <zhichao.gao@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>