Merge branch 'bugfix/fix_the_bug_for_WPA_WPA2_PSK_connection_fail_v3.1' into 'release/v3.1'

fix the bug for WPA_WPA2_PSK connection fail (backport v3.1)

See merge request espressif/esp-idf!6011
This commit is contained in:
Jiang Jiang Jian
2019-09-10 09:49:01 +08:00