Merge branch 'bugfix/fix_sniffer_bug_caused_by_mode_switch_v4.1' into 'release/v4.1'

Fix sniffer bug caused by mode switch  (backport v4.1)

See merge request espressif/esp-idf!7690
This commit is contained in:
Jiang Jiang Jian
2020-02-21 14:53:56 +08:00