Merge branch 'bugfix/fix_beacon_frame_vendor_ie_issue_v4.0' into 'release/v4.0'

bugfix: Place the Vendor Specific element at the end according to the protocol (backport v4.0)

See merge request espressif/esp-idf!7777
This commit is contained in:
Jiang Jiang Jian
2020-03-17 13:44:23 +08:00