use_lld=false for xcode bot.

lld requires llvm-ar which is not present in the xcode toolchain.

Bug: b/200179635
Change-Id: I3fb23d2ba9e03d9cc6f595f0c5d1ed410afae9f4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/232328
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35038}
diff --git a/tools_webrtc/ios/build_ios_libs.py b/tools_webrtc/ios/build_ios_libs.py
index d8e0513..4318440 100755
--- a/tools_webrtc/ios/build_ios_libs.py
+++ b/tools_webrtc/ios/build_ios_libs.py
@@ -160,7 +160,7 @@
     gn_args = [
         'target_os="ios"', 'ios_enable_code_signing=false',
         'use_xcode_clang=true', 'is_component_build=false',
-        'rtc_include_tests=false',
+        'rtc_include_tests=false', 'use_lld=false',
     ]
 
     # Add flavor option.