Staging: w35und: merge struct wb35_adapter to struct wbsoft_priv

This patch merges struct wb35_adapter to struct wbsoft_priv. Now we can finally
start passing a pointer to struct ieee80211_hw around where necessary.

Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>