In the past, the WIFI_FEATURE_HOSTAPD_11AX flag was ineffective.
Because hostapd takes the value of CONFIG_IEEE80211AX to enable
11ax mode on hotspot, the unset flag WIFI_FEATURE_HOSTAPD_11AX
went unnoticed.
However, after wpa_supplicant migrated from Android.mk to Android.bp,
it correctly evaluates WIFI_FEATURE_HOSTAPD_11AX to determine 11ax hotspot support. We need to set WIFI_FEATURE_HOSTAPD_11AX as true to
re-enable the 11ax mode on hotspot.
Bug: 389824755
Test: Hotspot is enabled in 11ax mode
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:4dd8c64713f9f004c2678e2a65f815e994dfcb12)
Merged-In: I635575b77a5f149605eaeb22046fbabe71955952
Change-Id: I635575b77a5f149605eaeb22046fbabe71955952
515504beba