Added new flag CONFIG_WIFI_NM_HOSTAPD_AP for hostapd support. Once this
flag is enabled, softAP will be setup by hostapd. Both wpa_supplicant
and hostapd uses same task and eloop.
Included necessary hostapd files when compiling wifi samples if
CONFIG_WIFI_NM_HOSTAPD_AP is enabled. Added hostapd support for all
softAP command of L2 wifi shell commands.

Signed-off-by: Hui Bai <[email protected]>

Enable CONFIG_IEEE80211AC flag for 11AC support when setting up
AP with hostapd.

Signed-off-by: Hui Bai <[email protected]>

Increase max count of CONFIG_WIFI_SHELL_MAX_AP_STA from 5 to 8. The
SoftAP of NXP wifi chip can support up to 8 stations.

Signed-off-by: Hui Bai <[email protected]>

Link mode shows unknown when legacy (A or bg only) device connects to
APUT. Set the link mode to WIFI_2 when the host freq over 4000 and set
link mode to WIFI_3 when the host freq over 2000.

Signed-off-by: Hui Bai <[email protected]>

Increase wifi connect input parameters max count to 13. Previous count
7 is not enough if other security type is supported.
When enabling softAP, the parameter cnx_params in cmd_wifi_ap_enable()
is with static key word. Then the parameter will always save
configurations of last time. Remove static keyword to eliminate effects
of configs from last tim and do memset before setting up softAP.

Signed-off-by: Hui Bai <[email protected]>

Update hostap repo to latest in west.yml

Signed-off-by: Hui Bai <[email protected]>