stage2 aarch64: add ldr instruction + smoke tests
stage2 aarch64: add ldr instruction + smoke tests

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