ipq-wifi: add BDF for IgniteNet SS-W2-AC2600

ipq-wifi: add BDF for IgniteNet SS-W2-AC2600

The IgniteNet SunSpot AC Wave2 comes with 2x QCA9994 ath10k chips
connected to the IPQ8068 SoC via PCIe.
Add board-2.bin for both radios on this board.

 3ac4a64 qca9984: add BDFs for IgniteNet SS-W2-AC2600

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit d8303b47218811432b8a2e5db58c02dcb74045ff)
Link: https://github.com/openwrt/openwrt/pull/19902
[Do not add ignitenet_ss-w2-ac2600]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>