staging: r8192ee: Add code for Bluetooth coexistence

In the wireless tree, this code forms a separate mini driver. As the changes
needed for the later drivers has not yet been merged, a separate version
is needed here.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>