ipam: Move metrics and stats to operator/pkg

`pkg/ipam/metrics` and `pkg/ipam/stats` are only imported by operator
code.

This commit continues work started in afbcb75 and moves those
packages under `operator/pkg/ipam/` so the agent/operator
boundary becomes more clear.

Signed-off-by: Hadrien Patte <hadrien.patte@datadoghq.com>

Author: HadrienPatte

operator/pkg/ipam/alibabacloud.go

@@ -15,7 +15,7 @@ import (
 
 	operatorOption "github.com/cilium/cilium/operator/option"
 	"github.com/cilium/cilium/operator/pkg/ipam/allocator/alibabacloud"
-	ipamMetrics "github.com/cilium/cilium/pkg/ipam/metrics"
+	ipamMetrics "github.com/cilium/cilium/operator/pkg/ipam/metrics"
 	ipamOption "github.com/cilium/cilium/pkg/ipam/option"
 	k8sClient "github.com/cilium/cilium/pkg/k8s/client"
 	"github.com/cilium/cilium/pkg/metrics"

operator/pkg/ipam/aws.go

@@ -14,7 +14,7 @@ import (
 	"github.com/spf13/pflag"
 
 	"github.com/cilium/cilium/operator/pkg/ipam/allocator/aws"
-	ipamMetrics "github.com/cilium/cilium/pkg/ipam/metrics"
+	ipamMetrics "github.com/cilium/cilium/operator/pkg/ipam/metrics"
 	ipamOption "github.com/cilium/cilium/pkg/ipam/option"
 	k8sClient "github.com/cilium/cilium/pkg/k8s/client"
 	"github.com/cilium/cilium/pkg/metrics"

operator/pkg/ipam/azure.go

@@ -15,7 +15,7 @@ import (
 
 	operatorOption "github.com/cilium/cilium/operator/option"
 	"github.com/cilium/cilium/operator/pkg/ipam/allocator/azure"
-	ipamMetrics "github.com/cilium/cilium/pkg/ipam/metrics"
+	ipamMetrics "github.com/cilium/cilium/operator/pkg/ipam/metrics"
 	ipamOption "github.com/cilium/cilium/pkg/ipam/option"
 	k8sClient "github.com/cilium/cilium/pkg/k8s/client"
 	"github.com/cilium/cilium/pkg/metrics"

operator/pkg/ipam/cell.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/cilium/cilium/operator/option"
 	"github.com/cilium/cilium/operator/pkg/ipam/allocator"
-	ipamMetrics "github.com/cilium/cilium/pkg/ipam/metrics"
+	ipamMetrics "github.com/cilium/cilium/operator/pkg/ipam/metrics"
 	"github.com/cilium/cilium/pkg/metrics"
 )
 

operator/pkg/ipam/clusterpool.go

@@ -14,7 +14,7 @@ import (
 	"github.com/spf13/pflag"
 
 	"github.com/cilium/cilium/operator/pkg/ipam/allocator/clusterpool"
-	ipamMetrics "github.com/cilium/cilium/pkg/ipam/metrics"
+	ipamMetrics "github.com/cilium/cilium/operator/pkg/ipam/metrics"
 	ipamOption "github.com/cilium/cilium/pkg/ipam/option"
 	k8sClient "github.com/cilium/cilium/pkg/k8s/client"
 	"github.com/cilium/cilium/pkg/option"

pkg/ipam/metrics/metrics.go operator/pkg/ipam/metrics/metrics.gopkg/ipam/metrics/metrics.go renamed to operator/pkg/ipam/metrics/metrics.go

@@ -14,7 +14,7 @@ import (
 	"github.com/cilium/cilium/pkg/alibabacloud/utils"
 	"github.com/cilium/cilium/pkg/defaults"
 	"github.com/cilium/cilium/pkg/ipam"
-	"github.com/cilium/cilium/pkg/ipam/stats"
+	"github.com/cilium/cilium/operator/pkg/ipam/stats"
 	ipamTypes "github.com/cilium/cilium/pkg/ipam/types"
 	v2 "github.com/cilium/cilium/pkg/k8s/apis/cilium.io/v2"
 	"github.com/cilium/cilium/pkg/lock"