Build 'cache-chroniclemap' master against Gerrit 'stable-3.7' branch

Change-Id: Ic4854ff011ee6689ecc9845760413db05f7ce7f8
diff --git a/jenkins/gerrit-bazel-module-cache-chroniclemap.yaml b/jenkins/gerrit-bazel-module-cache-chroniclemap.yaml
index aee24b1..e540423 100644
--- a/jenkins/gerrit-bazel-module-cache-chroniclemap.yaml
+++ b/jenkins/gerrit-bazel-module-cache-chroniclemap.yaml
@@ -7,4 +7,9 @@
             - stable-3.6
             - stable-3.5
             - stable-3.4
+      - 'module-{name}-bazel-{branch}-{gerrit-branch}':
+          branch:
+            - master
+          gerrit-branch:
+            - stable-3.7
       - 'module-{name}-verifier'