Jiang Jiang Jian a7847dbec9 Merge branch 'bugfix/bt_sniff_mode' into 'master'
component/bt: fix some bugs related to bluetooth sniff mode in controller

1. fix some bugs in bluetooth sniff mode in controller
2. export some symbols to esp32.rom.ld including functions and global variables in ROM code
3. update libbtdm.a which includes "IRAM_ATTR" addition or removal for some functions

See merge request !729
2017-05-05 16:27:37 +08:00
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