MdeModulePkg ErstFmpDxe: Create ESRT in ReadyToBoot event

MdeModulePkg ErstFmpDxe: Create ESRT in ReadyToBoot event

Current code just creates ESRT entry in FMP notification
and installs ESRT configuration table in ReadyToBoot event.

The LastAttemptVersion and LastAttemptStatus in ESRT will
be out of date after system continues to boot without reset
after capsule update (reset is not required or capsule update
is failed).

This patches updates the code to create ESRT based on all
FMP instances in ReadyToBoot event.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>