Ath10k_pci error after firmware-atheros update on QCA6174A

I ran apt update & apt upgrade and amongst the bunch I also updated the firmware-atheros package to 20190114-2+linaro2. Now I get the following error when modprobing:

root@OpenQ820:~# sudo modprobe -v ath10k_pci␍␊
insmod /lib/modules/4.14.53-itc-rel-3.1/kernel/drivers/net/wireless/ath/ath10k/ath10k_pci.ko ␍␊
[  230.896168] ath10k_pci 0000:01:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0␍␊
[  231.171821] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:01:00.0.bin failed with error -2␍␊
[  231.171868] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/cal-pci-0000:01:00.0.bin failed with error -2␍␊
[  231.182285] ath10k_pci 0000:01:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 0000:0000␍␊
[  231.191837] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0␍␊
[  231.201733] ath10k_pci 0000:01:00.0: firmware ver WLAN.RM.4.4.1-00079-QCARMSWPZ-1 api 6 features wowlan,ignore-otp crc32 fd869beb␍␊
[  231.274384] ath10k_pci 0000:01:00.0: failed to fetch board data for bus=pci,bmi-chip-id=0,bmi-board-id=1 from ath10k/QCA6174/hw3.0/board-2.bin␍␊
[  231.274541] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id 0:1 crc32 ed5f849a␍␊
[  231.873927] ath10k_pci 0000:01:00.0: Unknown eventid: 118809␍␊
[  231.876871] ath10k_pci 0000:01:00.0: Unknown eventid: 90118␍␊
[  234.983212] ath10k_pci 0000:01:00.0: failed to ping firmware: -110␍␊
[  234.983276] ath10k_pci 0000:01:00.0: failed to reset rx filter: -110␍␊
[  235.071453] ath10k_pci 0000:01:00.0: could not init core (-110)␍␊
[  235.071644] ath10k_pci 0000:01:00.0: could not probe fw (-110)␍␊

I have QCA6174A chipset.

I tried cloning ath10k-firmware repo and using the latest versions for firmware-6.bin in hw3.0 (using these steps), but no luck.

Does anyone have any suggestions what else should I try. I know I could blacklist the package with apt-mark, but I think that should be a last resort.