wifi: ath12k: add support for BSS color change

Add support for handling BSS color collision events reported by firmware.

There are two scenarios where a BSS color collision may be detected:
1. The AP's MAC detects the collision directly, and firmware reports a
   BSS color collision event to the host.
2. A STA associated with the AP detects the collision. The notification
   frame from the peer is routed directly to the AP firmware, which handles
   it and sends the BSS color collision event to the host.

Add logic to parse and handle such events, and pass the data
up to mac80211.

Unlike CSA, firmware does not provide an offload mechanism for BSS color
change. Instead, the color change process is triggered via beacon offload
TX completion events sent by firmware.

BSS color feature is enabled depending on service flag advertised by
firmware, based on which color change functionality is invoked.

This change builds upon the following ath11k patch.
commit 886433a9 ("ath11k: add support for BSS color change")

Tested-on: WCN7850 hw2.0 PCI WLAN.IOE_HMT.1.1-00011-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

Signed-off-by: Wei Zhang <wei.zhang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20251017060100.1751692-1-wei.zhang@oss.qualcomm.com


Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>