Added a custom function to show NSS firmware version during boot.
```
[Mon Jul 8 07:45:21 2024] qca-nss 39000000.nss: NSS FW Version: NSS.FW.12.1-022-HK.R
```
And
```
[Mon Jul 8 07:21:12 2024] qca-nss 39000000.nss: NSS FW Version: NSS.HK.11.4.0.5-5-R
```
Not sure why Qualcomm never included this ability in their drivers, since
it's clearly there in every firmware.
Signed-off-by: Sean Khan <datapronix@protonmail.com>