Force -znobtcfi on linker invocation.

Index: src/link/Elf.zig
--- src/link/Elf.zig.orig
+++ src/link/Elf.zig
@@ -1702,6 +1702,9 @@ fn linkWithLLD(self: *Elf, arena: Allocator, tid: Zcu.
 
         try argv.append("--error-limit=0");
 
+        try argv.append("-z");
+        try argv.append("nobtcfi");
+
         if (comp.sysroot) |sysroot| {
             try argv.append(try std.fmt.allocPrint(arena, "--sysroot={s}", .{sysroot}));
         }
