iwinfo: add device id for Atheros AR9287 PCIe wifi card
This card is identified by lspci as:
01:00.0 Network controller [0280]: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:002e] (rev 01)
Subsystem: Qualcomm Atheros Device [168c:30a4]
Signed-off-by: Pali Rohár <pali@kernel.org>