Spell fix and correct method for is dhcp enabled
Spell fix and correct method for is dhcp enabled

Change-Id: I6c07cf91484d6f5c6458f428a0cf060df464a951

FrankDuan/df_code,FrankDuan/df_code,neoareslinux/dragonflow,openstack/dragonflow,neoareslinux/dragonflow,FrankDuan/df_code,openstack/dragonflow,openstack/dragonflow