ath10k: QCA6174 hw3.0: add board-2.bin

This file uses the new format which contains multiple board files for various
boards.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>

WHENCE

@@ -2555,6 +2555,7 @@ File: ath10k/QCA6174/hw2.1/firmware-5.bin
 Version: SW_RM.1.1.1-00157-QCARMSWPZ-1
 Licence: ath10k/QCA6174/hw2.1/notice_ath10k_firmware-5.txt
 File: ath10k/QCA6174/hw3.0/board.bin
+File: ath10k/QCA6174/hw3.0/board-2.bin
 File: ath10k/QCA6174/hw3.0/firmware-4.bin
 Version: WLAN.RM.2.0-00180-QCARMSWPZ-1
 Licence: ath10k/QCA6174/hw3.0/notice_ath10k_firmware-4.txt