update BUILD files

cmd/kube-proxy/BUILD

@@ -15,6 +15,7 @@ go_binary(
         "-extldflags",
         "-static",
     ],
+    importpath = "k8s.io/kubernetes/cmd/kube-proxy",
     library = ":go_default_library",
     x_defs = version_x_defs(),
 )
@@ -22,6 +23,7 @@ go_binary(
 go_library(
     name = "go_default_library",
     srcs = ["proxy.go"],
+    importpath = "k8s.io/kubernetes/cmd/kube-proxy",
     deps = [
         "//cmd/kube-proxy/app:go_default_library",
         "//pkg/client/metrics/prometheus:go_default_library",

cmd/kube-proxy/app/BUILD

@@ -19,6 +19,7 @@ go_library(
         ],
         "//conditions:default": [],
     }),
+    importpath = "k8s.io/kubernetes/cmd/kube-proxy/app",
     deps = [
         "//pkg/api:go_default_library",
         "//pkg/api/validation:go_default_library",
@@ -87,6 +88,7 @@ go_test(
         "server_test.go",
         "validation_test.go",
     ],
+    importpath = "k8s.io/kubernetes/cmd/kube-proxy/app",
     library = ":go_default_library",
     deps = [
         "//pkg/api:go_default_library",