provider/aws: Support eu-west-2 (#10470)

* provider/aws: Support eu-west-2

This is the new London region - we don't have access yet but several
enquiries have come from customers who do.

* provider/aws: Support eu-west-2 region

* Update hosted_zones.go

builtin/providers/aws/config.go

@@ -313,6 +313,7 @@ func (c *Config) ValidateRegion() error {
 		"cn-north-1",
 		"eu-central-1",
 		"eu-west-1",
+		"eu-west-2",
 		"sa-east-1",
 		"us-east-1",
 		"us-east-2",

builtin/providers/aws/data_source_aws_elb_service_account.go

@@ -17,6 +17,7 @@ var elbAccountIdPerRegionMap = map[string]string{
 	"cn-north-1":     "638102146993",
 	"eu-central-1":   "054676820928",
 	"eu-west-1":      "156460612806",
+	"eu-west-2":      "652711504416",
 	"sa-east-1":      "507241528517",
 	"us-east-1":      "127311923021",
 	"us-east-2":      "033677994240",

builtin/providers/aws/hosted_zones.go

@@ -9,6 +9,7 @@ var hostedZoneIDsMap = map[string]string{
 	"us-west-2":      "Z3BJ6K6RIION7M",
 	"us-west-1":      "Z2F56UZL2M1ACD",
 	"eu-west-1":      "Z1BKCTXD74EZPE",
+	"eu-west-2":      "Z3GKZC51ZF0DB4",
 	"eu-central-1":   "Z21DNDUVLTQW6Q",
 	"ap-south-1":     "Z11RGJOFQNVJUP",
 	"ap-southeast-1": "Z3O0J2DXBE1FTB",