Vendor latest k8s.io/cri-api and netlink

* Bump k8s.io/cri-api to latest version - v0.23.0-alpha.4
* Vendor github.com/vishvananda/netlink for network stats

Signed-off-by: David Porter <porterdavid@google.com>

vendor/github.com/vishvananda/netlink/nl/devlink_linux.go

@@ -0,0 +1,63 @@
+package nl
+
+// All the following constants are coming from:
+// https://github.com/torvalds/linux/blob/master/include/uapi/linux/devlink.h
+
+const (
+	GENL_DEVLINK_VERSION = 1
+	GENL_DEVLINK_NAME    = "devlink"
+)
+
+const (
+	DEVLINK_CMD_GET         = 1
+	DEVLINK_CMD_PORT_GET    = 5
+	DEVLINK_CMD_ESWITCH_GET = 29
+	DEVLINK_CMD_ESWITCH_SET = 30
+)
+
+const (
+	DEVLINK_ATTR_BUS_NAME            = 1
+	DEVLINK_ATTR_DEV_NAME            = 2
+	DEVLINK_ATTR_PORT_INDEX          = 3
+	DEVLINK_ATTR_PORT_TYPE           = 4
+	DEVLINK_ATTR_PORT_NETDEV_IFINDEX = 6
+	DEVLINK_ATTR_PORT_NETDEV_NAME    = 7
+	DEVLINK_ATTR_PORT_IBDEV_NAME     = 8
+	DEVLINK_ATTR_ESWITCH_MODE        = 25
+	DEVLINK_ATTR_ESWITCH_INLINE_MODE = 26
+	DEVLINK_ATTR_ESWITCH_ENCAP_MODE  = 62
+	DEVLINK_ATTR_PORT_FLAVOUR        = 77
+)
+
+const (
+	DEVLINK_ESWITCH_MODE_LEGACY    = 0
+	DEVLINK_ESWITCH_MODE_SWITCHDEV = 1
+)
+
+const (
+	DEVLINK_ESWITCH_INLINE_MODE_NONE      = 0
+	DEVLINK_ESWITCH_INLINE_MODE_LINK      = 1
+	DEVLINK_ESWITCH_INLINE_MODE_NETWORK   = 2
+	DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT = 3
+)
+
+const (
+	DEVLINK_ESWITCH_ENCAP_MODE_NONE  = 0
+	DEVLINK_ESWITCH_ENCAP_MODE_BASIC = 1
+)
+
+const (
+	DEVLINK_PORT_FLAVOUR_PHYSICAL = 0
+	DEVLINK_PORT_FLAVOUR_CPU      = 1
+	DEVLINK_PORT_FLAVOUR_DSA      = 2
+	DEVLINK_PORT_FLAVOUR_PCI_PF   = 3
+	DEVLINK_PORT_FLAVOUR_PCI_VF   = 4
+	DEVLINK_PORT_FLAVOUR_VIRTUAL  = 5
+)
+
+const (
+	DEVLINK_PORT_TYPE_NOTSET = 0
+	DEVLINK_PORT_TYPE_AUTO   = 1
+	DEVLINK_PORT_TYPE_ETH    = 2
+	DEVLINK_PORT_TYPE_IB     = 3
+)