iwlwifi: fix probe mask for 39 scan API

This pach make use of 39 own scan probe mask
the variables or of different types

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
3 files changed