ath10k: QCA99X0 hw2.0: add board-2.bin

board-2.bin replaces board.bin, so remove the latter. board-2.bin support was
added to ath10k back in 2015 so this won't break backwards compatiblity in
recent kernels.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

WHENCE

@@ -3634,7 +3634,7 @@ File: ath10k/QCA9377/hw1.0/notice_ath10k_firmware-5.txt
 File: ath10k/QCA9377/hw1.0/firmware-sdio-5.bin
 Version: WLAN.TF.1.1.1-00061-QCATFSWPZ-1
 File: ath10k/QCA9377/hw1.0/notice_ath10k_firmware-sdio-5.txt
-File: ath10k/QCA99X0/hw2.0/board.bin
+File: ath10k/QCA99X0/hw2.0/board-2.bin
 File: ath10k/QCA99X0/hw2.0/firmware-5.bin
 Version: 10.4.1.00030-1
 File: ath10k/QCA99X0/hw2.0/notice_ath10k_firmware-5.txt