wifi: ath12k: add ATH12K_FW_FEATURE_MLO capability firmware feature

wifi: ath12k: add ATH12K_FW_FEATURE_MLO capability firmware feature

To maintain backward compatibility with older firmware versions, introduce a
new feature bit, ATH12K_FW_FEATURE_MLO, to identify whether the firmware
supports MLO. If the firmware-X.bin does not have this bit advertised in the
feature, then MLO capability in the host will be disabled.

This applies only for QCN9274 chipsets.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241211154358.776279-6-kvalo@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>