gcc: enable Ada (gnat) for x86_64 and i686
gcc: enable Ada (gnat) for x86_64 and i686

See: #4154
Signed-off-by: Jürgen Buchmüller <2642204b262fe30d9fcde46ee57f8ed7ac19ed92@t-online.de>

necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages