staging: ks7010: join some debug traces in get_current_ap function

There is a lot of netdev_dbg calls related with the access point
in this function and all of them can be joined in only one call.
This makes code a bit simplier.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>