MdeModulePkg/UfsPassThruDxe: Improve Device initialization polling Loop

MdeModulePkg/UfsPassThruDxe: Improve Device initialization polling Loop

https://bugzilla.tianocore.org/show_bug.cgi?id=3217

Current Ufs Pass thru driver polls for 5us and return success even when
the timeout occurs.
There are cards that can take upto 600ms for Init and hence increased
the time out for fDeviceInit polling loop.

Signed-off-by: Bandaru <purna.chandra.rao.bandaru@intel.com>
Cc: Mateusz Albecki <mateusz.albecki@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>