iwlwifi: move _agn statistics related structure

agn and 3945 has different statistics_notif data structure; since 3945
has it statistics_notif data structure inside the _3945 portion of
iwl_priv, it make sense to move the agn statistics_notif into _agn portion.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

diff --cc drivers/net/wireless/iwlwifi/iwl-4965.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-5000.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-agn-lib.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-agn.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-debugfs.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-dev.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-rx.c
Simple merge