PACEXI5-2447: "10." IP not acquired after switch from LnF to private
PACEXI5-2447: "10." IP not acquired after switch from LnF to private

Reason for change: Force a DHCP release and renew on switching between
LnF and private SSIDs, as some Xi5s in the field sometimes do not
acquire a 10.x.y.z IP address after a switch from LnF to private. Also
log udhcpc events.
Test Procedure: Verify DHCP lease is released and renewed on switching
between LnF and private SSIDs. Also, verify DHCP event logs appear in
netsrvmgr logs.
Risks: Low. Verify no wifi regressions.
Signed-off-by: Tony Ukken <Tony_Ukken2@cable.comcast.com>

Change-Id: Iea719b9dba9119a73bc76753b8340a089eebc16c

rdkcmf/rdk-sysint