iwlwifi: pcie: add 0x2526/0x401* devices back to cfg detection

Three devices, with PCI device ID 0x2526 and subdevice IDs 0x4010,
0x4018 and 0x401C were removed accidentally.  Add them back.

Reported-by: Brett Hassal <brett.hassal@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206661
Fixes: 0b295a1e

 ("iwlwifi: add device name to device_info")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200317123331.16762b29f26c.I928bcaa799e7b3d33838c0667714eeb9fa665290@changeid