Redis 'repl-backlog-size' conf parameter using wrong MIN value

Redis configuration validation for the 'repl-backlog-size' parameter
uses a wrong MIN value of '0'.When set to less than 16384 value,
I can see that the value in redis.conf[1], but through the
'config get *' see are 16384[2]. Because the minimum default value
in redis is 16384[3]. So I want to modify Min value to 16384.

[1]: repl-backlog-size 0
[2]: 59) "repl-backlog-size"
     60) "16384"
[3]:58f79e2ff4/src/server.h (L110)

Closes-Bug: #1697596
Change-Id: I81cb1c02943edf0af3d7bf67ff2f083a4c07d518

releasenotes/notes/fix-redis-configuration-f0543ede84f8aac3.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - Fixes an issue with redis configuration,it use a wrong min value
+    for repl-backlog-size in validation rules.
+    Bug 1697596
+

trove/templates/redis/validation-rules.json

@@ -90,7 +90,7 @@
         {
             "name": "repl-backlog-size",
             "restart_required": false,
-            "min": 0,
+            "min": 16384,
             "type": "integer"
         },
         {