jenkins/ci.jpl: Increase wait job timeout by 30min

To 5.5h total. Recent jobs shows that there's usually under a dozen jobs
which don't fit into the current timeout.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Id1d572ec850416f7322b0f3416694ab5d21197c8
diff --git a/jenkins/ci.jpl b/jenkins/ci.jpl
index fc624ec..7678e2b 100644
--- a/jenkins/ci.jpl
+++ b/jenkins/ci.jpl
@@ -386,7 +386,7 @@
             if (isPerPatchJob()) {
               lava_timeout = 2700     // 45min
             } else {
-              lava_timeout = 18000    // 5h
+              lava_timeout = 19800    // 5.5h
             }
             withCredentials([usernamePassword(credentialsId: env.LAVA_CREDENTIALS, passwordVariable: 'LAVA_TOKEN', usernameVariable: 'LAVA_USER')]) {
               sh(script: """./tf-m-ci-scripts/lava_helper/lava_wait_jobs.py --job-ids ${all_jobs.join(",")} \