Windows: Handle ACCESS_DENIED in DeviceIoControl

This was causing the Dir.readLink test to fail for me locally with error.Unexpected NTSTATUS=0xc0000022. Not sure if PRIVILEGE_NOT_HELD is actually possible or not.

lib/std/os/windows.zig

@@ -217,6 +217,7 @@ pub fn DeviceIoControl(
     switch (rc) {
         .SUCCESS => {},
         .PRIVILEGE_NOT_HELD => return error.AccessDenied,
+        .ACCESS_DENIED => return error.AccessDenied,
         .INVALID_PARAMETER => unreachable,
         else => return unexpectedStatus(rc),
     }