Merge branch 'feature/optimize_wifi_memory_v3.1' into 'release/v3.1'
authorJiang Jiang Jian <jack@espressif.com>
Fri, 29 Jun 2018 07:13:00 +0000 (15:13 +0800)
committerJiang Jiang Jian <jack@espressif.com>
Fri, 29 Jun 2018 07:13:00 +0000 (15:13 +0800)
Optimize WiFi memory (backport v3.1)

See merge request idf/esp-idf!2651


Trivial merge