The functions AddUnicodeString() and AddUnicodeString2() might return a new value into their parameter UnicodeStringTable, hence add the appropiate 'OUT' decorator. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com> Reviewed-by: Liming Gao <liming.gao@intel.com>