Merge branch 'bugfix/fix_sniffer_bug_caused_by_mode_switch_v3.3' into 'release/v3.3'

FIx sniffer bug caused by mode switch (backport v3.3)

See merge request espressif/esp-idf!7685
This commit is contained in:
Jiang Jiang Jian
2020-02-20 14:58:33 +08:00