jenkins/build-seed: continue on build failure

Even if one machine fails to fully build, we should keep
going and build the others.  This will populate the seed
more than stopping on first fail.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ice1ec2ed3705e81ef483292656cd958cb0cd7f87
diff --git a/jenkins/build-seed b/jenkins/build-seed
index 9e30a07..6ea3d5b 100755
--- a/jenkins/build-seed
+++ b/jenkins/build-seed
@@ -22,6 +22,7 @@
 for m in "${SEED_MACHINES[@]}"; do
     echo "Seeding $m"
     export target=$m
-    "${WORKSPACE}/openbmc-build-scripts/build-setup.sh"
+    "${WORKSPACE}/openbmc-build-scripts/build-setup.sh" || \
+        echo "Build failed for $m; continuing."
     rm -rf "${WORKSPACE}/openbmc/build"
 done