ovnkube: ovn-controller log and ovnkube gateway options support
ovnkube: ovn-controller log and ovnkube gateway options support

Provide a way to specify log options to ovn-controller daemon just
like how we do for northd, ovsdb servers, and others.

Provide a way to specify different mode of L3 gateway options. By
default we will use the local host networking like today.

Fix ovn-northd log option issue.

Signed-off-by: Zhen Wang <7fd28998db4ede694c17768ccc0ae52566ae810f@nvidia.com>
Acked-by: Girish Moodalbail <74ea68506563fcb14ffc94b33dcc0cf7da66ea4d@nvidia.com>

shettyg/ovn-kubernetes,shettyg/ovn-kubernetes,shettyg/ovn-kubernetes