ath10k: allow dynamic bandwidth in hw rate control

Frames were never retransmitted with
different/lower bandwidths, e.g. only 80MHz
bandwidth was used when dealing with a VHT80
peer.

Allow HW rate control to try out different
bandwidths when retransmitting. This increases
robustness.

Also, document the parameter properly.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ath10k: remove htt rx amsdu clear retry bit hack

With commit 0cfcefef1 ("mac80211: support reporting A-MSDU subframes
individually") there's no need to have the hack to clear the retry bit in
ath10k_htt_rx_amsdu(), mac80211 can handle this properly now.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ath10k: expand the wmi mgmt queue limit to 128

It was obseverd many times the short queue limit can be
easily exceeded in case of AP multiple BSSID scenarios.

"ath10k: wmi mgmt_tx queue limit reached."

This was leading to TX packets drops.

This patch expands the queue limit to 128. After many stress
experiments (high traffic and lot of management frames in
the air) the new value seems to fix the problem on platforms
with limited resources.

Reported-By: Tomasz Skapski <tomasz.skapski@tieto.com>
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ath10k: clear tx status before submitting to mac80211

Garbage was reported in ieee80211_tx_info. This
led to a WARN_ON in cfg80211_calculate_bitrate().

This also fixes some random tx bitrate values
reported through `iw` command.

Reported-By: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>