tf-a-eclair-daily: Increase build timeout

Gets close to it on production.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Iac5526cd9c262d1e1dad8eb0af3b351384d346ee
diff --git a/tf-a-eclair-daily.yaml b/tf-a-eclair-daily.yaml
index d349072..e00d011 100644
--- a/tf-a-eclair-daily.yaml
+++ b/tf-a-eclair-daily.yaml
@@ -97,7 +97,7 @@
     wrappers:
         - timestamps
         - timeout:
-            timeout: 300
+            timeout: 400
             fail: true
     builders:
     - shell: |