Update broker package.

Author: xiaolanz

Makefile

@@ -145,10 +145,10 @@ generate: generate-broker-go generate-mesh-go generate-mixer-go generate-routing
 # broker/...
 #####################
 
-broker_v1_path := broker/v1/config
+broker_v1_path := broker/v1alpha1
 broker_v1_protos := $(shell find $(broker_v1_path) -type f -name '*.proto' | sort)
 broker_v1_pb_gos := $(broker_v1_protos:.proto=.pb.go)
-broker_v1_pb_doc := $(broker_v1_path)/istio.broker.v1.config.pb.html
+broker_v1_pb_doc := $(broker_v1_path)/istio.broker.v1alpha1.pb.html
 
 generate-broker-go: $(broker_v1_pb_gos) $(broker_v1_pb_doc)
 

broker/v1/config/istio.broker.v1.config.pb.html renamed to broker/v1alpha1/istio.broker.v1alpha1.pb.html

@@ -17,9 +17,9 @@ syntax = "proto3";
 // $overview: Configuration affecting the Istio service broker
 // $location: https://istio.io/docs/reference/config/istio.broker.v1.config.html
 
-package istio.broker.v1.config;
+package istio.broker.v1alpha1;
 
-option go_package="istio.io/api/broker/v1/config";
+option go_package="istio.io/api/broker/v1alpha1";
 
 // ServiceClass defines a service that are exposed to Istio service consumers.
 // The service is linked into one or more ServicePlan.

broker/v1/config/service_class.pb.go renamed to broker/v1alpha1/service_class.pb.go

@@ -13,9 +13,9 @@
 //   limitations under the License.
 syntax = "proto3";
 
-package istio.broker.v1.config;
+package istio.broker.v1alpha1;
 
-option go_package="istio.io/api/broker/v1/config";
+option go_package="istio.io/api/broker/v1alpha1";
 
 // ServicePlan defines the type of services available to Istio service
 // consumers.  One or more services are included in a plan. The plan is flexible