GN: Build iOS framework in build_ios_libs.sh

webrtc/sdk/BUILD.gn

Index: webrtc/sdk/BUILD.gn
diff --git a/webrtc/sdk/BUILD.gn b/webrtc/sdk/BUILD.gn
index f4402c8b452b3a90b516cf44c829a849589c7102..091f84c2e761371f77359c7aeac7abf53695a31f 100644
--- a/webrtc/sdk/BUILD.gn
+++ b/webrtc/sdk/BUILD.gn
@@ -307,6 +307,8 @@ if (is_ios || (is_mac && mac_deployment_target == "10.7")) {
         public_headers += [ "objc/Framework/Headers/WebRTC/RTCFileLogger.h" ]
       }
 
+      ldflags = [ "-all_load" ]
+
       deps = [
         ":rtc_sdk_peerconnection_objc",
         "//webrtc/system_wrappers:field_trial_default",
@@ -336,4 +338,13 @@ if (is_ios || (is_mac && mac_deployment_target == "10.7")) {
       }
     }
   }
+
+  rtc_static_library("rtc_sdk_objc") {
+    complete_static_lib = true
+    deps = [
+      ":rtc_sdk_peerconnection_objc",
+      "../system_wrappers:field_trial_default",
+      "../system_wrappers:metrics_default",
+    ]
+  }
 }