CQ: Add ios_api_framework trybot to default set.
CQ: Add ios_api_framework trybot to default set.

BUG=webrtc:5737
TBR=tkchin@webrtc.org

Review URL: https://codereview.webrtc.org/2015863002 .

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#12906}

ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc