[PATCH ath-next v2] wifi: ath12k: Fix NSS value update in ext_rx_stats

[Vasanthakumar Thiagarajan]

On 10/7/2025 7:03 PM, Thiraviyam Mariyappan wrote:
> Currently, in ext_rx_stats, the NSS value is taken directly from
> the firmware, which results in incorrect mapping:
>          4x4, 3x3, 2x2, 1x1 SS are incorrectly updated as 3x3, 2x2,
> 1x1, 0x0 SS respectively.
> 
> Fix the issue by incrementing the NSS value by 1 while updating
> the PPDU info to ensure accurate spatial stream statistics.
> 
> Remove the redundant +1 increment in the radiotap header when monitor
> mode is enabled to prevent double counting.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Thiraviyam Mariyappan <thiraviyam.mariyappan at oss.qualcomm.com>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan at oss.qualcomm.com>