UefiPayloadPkg: Fix debug print error level hob not save correct

UefiPayloadPkg: Fix debug print error level hob not save correct

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4264
Fix debug print error level hob not save correct DebugPrintErrorlevel
Should cover the case:
Header.Length == UNIVERSAL_PAYLOAD_SIZEOF_THROUGH_FIELD ()
Cc: Ray Ni <ray.ni@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Cc: James Lu <james.lu@intel.com>
Cc: Gua Guo <gua.guo@intel.com>
Signed-off-by: Ning Feng <ning.feng@intel.com>
Reviewed-by: Gua Guo <gua.guo@intel.com>