staging: ks7010: Remove duplicate #define's

The AUTH_TYPE_OPEN_SYSTEM and AUTH_TYPE_SHARED_KEY #define lines
are duplicated in ks_hostif.h.  Replace them both with one set of

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>