Merge branch 'bugfix/fix_the_bug_for_WPA_WPA2_PSK_connection_fail_v4.0' into 'release/v4.0'

fix the bug for WPA_WPA2_PSK connection fail(backport v4.0)

See merge request espressif/esp-idf!6010
This commit is contained in:
Jiang Jiang Jian
2019-09-06 14:52:58 +08:00