Revert "Set contrail-api workers count to 1 by default"

Closes-Bug: PROD-27538 (PROD:27538)

This reverts commit 31d4becfa98c11bbdb77d0c6c9e3d8f95e479d77.

Change-Id: Ib69e1031fa4fe0abcdb0f1434ec1f5b18a3d998c
diff --git a/opencontrail/control/cluster4_0.yml b/opencontrail/control/cluster4_0.yml
index 12a344e..95b0d90 100644
--- a/opencontrail/control/cluster4_0.yml
+++ b/opencontrail/control/cluster4_0.yml
@@ -27,7 +27,7 @@
     opencontrail_controller_container_name: opencontrail_controller_1
     opencontrail_analytics_container_name: opencontrail_analytics_1
     opencontrail_analyticsdb_container_name: opencontrail_analyticsdb_1
-    opencontrail_api_workers_count: 1
+    opencontrail_api_workers_count: 6
     analytics_vip_address: ${_param:opencontrail_analytics_address}
 # Temprorary fix for MOS9 packages to pin old version of kafka
   linux: