wbsd(4) on OpenBSD

The text f8897727034e, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7 shipped it.

Winbond W83L518D/W83L519D SD memory card interface