smb: Do not show password prompt when using winbind ccache
Recent samba releases seems invoke auth_callback even when using cached winbind credentials. It shows password prompt to user, which is unexpected. Add one more iteration in the mount procedure just for ccache. This will unfortunately make one fail attempt if the winbind ccache is not configured, but I don't see better way to fix this.
Closes: #369 (closed)
Edited by Ondrej Holy