ipq40xx: mikrotik: provide BDF-s on demand

ipq40xx: mikrotik: provide BDF-s on demand

Since we now can pass the API 1 BDF-s aka board.bin to the ath10k
driver per radio lets use that to provide the BDF-s for MikroTik devices.

This also resolves the performance issues that happen as MikroTik changes
the boards and ships them under the same revision but they actually ship
with and require a different BDF.

Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 4d4462cc2ace4b044e99e9b22a24cb4d89c7db95)
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>