disable stage2 zir tests on not-yet-supported archs
disable stage2 zir tests on not-yet-supported archs

raulgrell/zig,andrewrk/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig