Docker: Add new agents

Signed-off-by: Benjamin Copeland <ben.copeland@linaro.org>
Change-Id: I11beb7e178268699024f22838d1eb3fe6998d004
diff --git a/ci-dockerslaves-cleanup.yaml b/ci-dockerslaves-cleanup.yaml
index edffffa..bb54759 100644
--- a/ci-dockerslaves-cleanup.yaml
+++ b/ci-dockerslaves-cleanup.yaml
@@ -35,6 +35,8 @@
                 - x86_64-TF-03
                 - x86_64-TF-04
                 - x86_64-TF-05
+                - x86-TF-06
+                - x86-TF-07
     execution-strategy:
         sequential: false
     wrappers: