WebRTC: Add recipe to build iOS API Framework

masters/master.client.webrtc.fyi/master_mac_cfg.py

Index: masters/master.client.webrtc.fyi/master_mac_cfg.py
diff --git a/masters/master.client.webrtc.fyi/master_mac_cfg.py b/masters/master.client.webrtc.fyi/master_mac_cfg.py
index 12e0407458603fc33a83317626b6173a731dcf47..2dd1b3a783d3ff4c4948e77e6aa92f15c248ca94 100644
--- a/masters/master.client.webrtc.fyi/master_mac_cfg.py
+++ b/masters/master.client.webrtc.fyi/master_mac_cfg.py
@@ -17,6 +17,7 @@ def Update(c):
                                 'Mac64 Release (swarming)',
                                 'iOS64 Debug (GN)',
                                 'iOS64 Release (GN)',
+                                'iOS API Framework Builder',
                             ]),
   ])
 
@@ -32,6 +33,11 @@ def Update(c):
       'slavebuilddir': 'mac64_gn',
       'recipe': 'webrtc/ios',
     },
+    {
+      'name': 'iOS API Framework Builder',
+      'slavebuilddir': 'mac64_api_framework',
+      'recipe': 'webrtc/ios_api_framework',
+    },
   ]
 
   c['builders'].extend([