Merge branch 'bugfix/btdm_spp_crash_on_reset_v3.1' into 'release/v3.1'

component/bt: Fix bug of SPP crash on reset (backport v3.1)

See merge request idf/esp-idf!2951
This commit is contained in:
Jiang Jiang Jian
2018-08-08 14:36:21 +08:00