wifi: ath11k: WMI services debugfs and HE AP fixes

A debugfs file listing the firmware's WMI services, and fixes for an ath11k HE AP found by checking it against IEEE Std 802.11-2024, each tested on a QCN9074:

1. debugfs: wmi_services lists the services the firmware advertises. Earlier posted in the airtime fairness series, now split by tree; since v2 the commit message no longer claims to match ath10k's output.
2. Probe Responses during a channel switch carried the initial count:
ath11k never counted down mac80211's CSA counter (as ath12k does).
3. Without spatial reuse parameters, an AP enabled non-SRG OBSS PD at -62 dBm; it now stays off, as in ath12k.
4. A 6 GHz AP never sent its per-20 MHz power limits to firmware (the TPC command was station only); it now does as an LPI AP, as in ath12k.
5. The hardware DSCP-TID tables used the class selector bits, while cfg80211 maps DSCP to UP per RFC 8325 section 4; checked on air through the firmware's per-TID peer statistics (CS1->1, AF21->3, EF->6, CS6->7).

None of them depends on the mac80211 series sent alongside.

The patches by me were written with an AI coding assistant (Claude Code), which also drafted the changelogs; the testing described was done on the hardware.

v2 of patch 1: https://lore.kernel.org/all/[email protected]/

Andrei-Alexandru Bleortu (5):
wifi: ath11k: add a debugfs file listing the firmware WMI services
wifi: ath11k: count down channel switch announcements in mac80211
wifi: ath11k: leave OBSS PD off when spatial reuse is not configured
wifi: ath11k: set the 6 GHz transmit power limits of an AP
wifi: ath11k: map DSCP to TID as cfg80211 does by default

 drivers/net/wireless/ath/ath11k/core.h    |  2 ++
 drivers/net/wireless/ath/ath11k/debugfs.c | 15 +++++++++++
 drivers/net/wireless/ath/ath11k/hal_tx.c  | 30 +++++++++++-----------
 drivers/net/wireless/ath/ath11k/mac.c     | 31 +++++++++++++++--------
 drivers/net/wireless/ath/ath11k/wmi.c     | 23 +++++++++++++----
 5 files changed, 71 insertions(+), 30 deletions(-)

base-commit: f49defea7668d8c68ec19fa085ef3da6075561c7

2.47.3