Merge branch 'bugfix/fix_softap_crash_when_sta_reset_v3.1' into 'release/v3.1'

wifi: fix softap crash when sta reset (backport v3.1)

See merge request idf/esp-idf!5002
This commit is contained in:
Jiang Jiang Jian
2019-05-23 16:17:50 +08:00