Increase boot timeout to 1h

Related-Prod: PRODX-00000
Change-Id: I23fcd4c0d1e604bd84e12d65d89b32ca840368cc
diff --git a/de/heat-templates/fragments/SrvInstancesBM.yaml b/de/heat-templates/fragments/SrvInstancesBM.yaml
index 1778b25..cdf0647 100644
--- a/de/heat-templates/fragments/SrvInstancesBM.yaml
+++ b/de/heat-templates/fragments/SrvInstancesBM.yaml
@@ -35,7 +35,7 @@
   boot_timeout:
     type: number
     description: Boot timeout for instance
-    default: 1200
+    default: 3600
   ucp_master_host:
     type: string
     default: ''