libglvnd: disable asm on aarch64-darwin
libglvnd: disable asm on aarch64-darwin

libglvnd itself doesn't know about `aarch64-darwin`, so it tries
to use assembly that is not supported by mach-o, failing as a result.

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs