Fix Ubuntu ARM64 link error in the regular org. (#2356)

This is a temporary fix that unblocks the downstream pipeline for
commits older than
bazelbuild/bazel@97b7a5a

Example failure:
https://buildkite.com/bazel/bazel-at-head-plus-downstream/builds/4849#0198744c-7548-41b5-bb20-deb8ce6ead51

Progress towards
#2353

Author: fweikert

buildkite/bazelci.py

@@ -1120,7 +1120,7 @@ def calculate_flags(task_config, task_config_key, action_key, tmpdir, test_env_v
     # Eventually we should set the flags in build_bazel_binaries.yml in the Bazel repo.
     # However, for now we need to hack bazelci.py so that we can rebuild binaries
     # at older commits.
-    if THIS_IS_TRUSTED and is_linux() and is_64_bit():
+    if is_linux() and is_64_bit():
         flags += ["--linkopt=-Wl,--no-fix-cortex-a53-843419", "--host_linkopt=-Wl,--no-fix-cortex-a53-843419"]
 
     return flags, json_profile_out, capture_corrupted_outputs_dir