From fc20a97ba2eba753974ea95d504d130093030596 Mon Sep 17 00:00:00 2001
From: Yaqiang Zhu <yaqiangzhu@microsoft.com>
Date: Wed, 10 Jan 2024 09:11:25 +0800
Subject: [PATCH] [202311][counter] Clear counter table when dhcpmon init (#14)

[202311][counter] Clear counter table when dhcpmon init (#14)

Cherry-pick from #14

Why I did it
Fix issue sonic-net/sonic-buildimage#15047
dhcp counter didn't restore after config reload

Work item tracking
Microsoft ADO (number only): 26270786
How I did it
Clear all counters when dhcpmon start
Remove clear counter in initialize_counter since they are cleared in previous
How to verify it
Build debian packet and install in DUT do manually testing
Run dhcp_relay test, all passed

Signed-off-by: Yaqiang Zhu <yaqiangzhu@microsoft.com>