wifi: ath12k: add extended NSS bandwidth support for 160 MHz

wifi: ath12k: add extended NSS bandwidth support for 160 MHz

Currently rx and tx MCS map for 160 MHz under HE capabilities
are not updating properly, when 160 MHz is configured with NSS
lesser than max NSS support. Fix this by utilizing
nss_ratio_enabled and nss_ratio_info fields sent by firmware
in service ready event.

However, if firmware advertises EXT NSS BW support in VHT caps
as 1(1x2) and when nss_ratio_info indicates 1:1, reset the EXT
NSS BW Support in VHT caps to 0 which indicates 1x1. This is
to avoid incorrectly choosing 1:2 NSS ratio when using the
default VHT caps advertised by firmware.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-10-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>