[satlab] Add gbb_utility as symlink of futility

BUG=b:251926435

Change-Id: I08cf9861bb42d575b787dd0fcc988791d90c6725
diff --git a/src/dockerfiles/servod/Dockerfile b/src/dockerfiles/servod/Dockerfile
index d08e0e4..99e6e6a 100644
--- a/src/dockerfiles/servod/Dockerfile
+++ b/src/dockerfiles/servod/Dockerfile
@@ -18,4 +18,6 @@
 
 # Try to remove as much as possible to make the container smaller
 RUN apt-get autoclean \
-    && rm -rf /var/lib/apt/lists/*
\ No newline at end of file
+    && rm -rf /var/lib/apt/lists/*
+
+RUN ln -s /usr/bin/futility /usr/bin/gbb_utility