Merge branch 'bugfix/fix_softap_PMK_invalidate_in_NVS_v3.1' into 'release/v3.1'

fix(lib): fix softap PMK invalidate in NVS(backport v3.1)

See merge request sdk/ESP8266_RTOS_SDK!1494

Author: donghengqaz

components/esp8266/lib/VERSION

@@ -1,6 +1,6 @@
 gwen:
     core:       f91b7e5
-    net80211:   f91b7e5
+    net80211:   23a826d
     pp:         f91b7e5
     wpa:        f91b7e5
     espnow:     f91b7e5