RDKB-38225: Device mac empty"syscfg get eth_wan_enabled" set as false
RDKB-38225: Device mac empty"syscfg get eth_wan_enabled" set as false

Reason for change: Device mac is coming as Empty in WEBPAlog and Webconfig Logs
                   because "syscfg get eth_wan_enabled" set as false
Test Procedure:
1. Build won't break
2. Test wepa notification
3. Test weconfig behaviour
4. Test other dependent features
Risks: medium
Signed-off-by: kulvendra.singh@sky.uk

(cherry picked from commit eae1dd6c7744e757a138cb4e8adb002b85459ac7)
Change-Id: Id32813a8296ba62b260d3296b5956638f9e7aafa

rdkcmf/rdkb-CcspPandM,rdkcmf/rdkb-CcspPandM,rdkcmf/rdkb-CcspPandM