iwlwifi: add new 7260 and 3160 series device IDs

Add new device IDs and configurations to support
all the devices.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --cc drivers/net/wireless/iwlwifi/iwl-7000.c
Simple merge

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

diff --cc drivers/net/wireless/iwlwifi/pcie/drv.c
Simple merge