Light refactor of PauseForKey.
gSettings.CPU.SavingMode is ConfigManager.
PlatformPosix : do not redefine abort(), use abort() instead of
CpuDeadLoop().
Format debug.log file name.
Use malloc/free instead of AllocateZeroPool/FreePool for validator
compatibility.
Use strlen instead of AsciiStrLen for validator compatibility.
getRBr() and getRPlt() : make them independent from global var.
Fix wrong line number in XmlLiteParser.
