address comments

Signed-off-by: Huabing (Robin) Zhao <zhaohuabing@gmail.com>

Author: zhaohuabing

internal/gatewayapi/helpers.go

@@ -1046,7 +1046,7 @@ func resolvePolicyTargets[T client.Object](
 	targetRefs egv1a1.PolicyTargetReferences,
 	potentialTargets []T,
 	referenceGrants []*gwapiv1b1.ReferenceGrant,
-	policGroup string,
+	policyGroup string,
 	policyKind string,
 	policyNamespace string,
 	namespaceLookup func(string) *corev1.Namespace,
@@ -1055,7 +1055,7 @@ func resolvePolicyTargets[T client.Object](
 		targetRefs.TargetSelectors,
 		potentialTargets,
 		referenceGrants,
-		policGroup,
+		policyGroup,
 		policyKind,
 		policyNamespace,
 		namespaceLookup)

release-notes/current.yaml

@@ -46,6 +46,7 @@ new features: |
   Added support for OpenTelemetry sampler configuration for tracing.
   Added support for default EnvoyProxy settings on EnvoyGatewaySpec that can be overridden by GatewayClass or Gateway-level EnvoyProxy configurations. A new MergeType field allows choosing between Replace (default), StrategicMerge, or JSONMerge strategies for combining configurations.
   Added support for sending Envoy Gateway route metadata to external authorization backends via `SecurityPolicy.spec.extAuth.includeRouteMetadata`.
+  Added support for cross-namespace policy attachment for ClientTrafficPolicy, BackendTrafficPolicy, EnvoyExtensionPolicy, and SecurityPolicy.
 
 bug fixes: |
   Fixed local rate limit rules with identical sourceCIDR client selectors producing conflicting descriptors.