update BUILD files

vendor/github.com/hashicorp/hcl/json/parser/BUILD

@@ -6,6 +6,7 @@ go_library(
         "flatten.go",
         "parser.go",
     ],
+    importpath = "github.com/hashicorp/hcl/json/parser",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/hashicorp/hcl/hcl/ast:go_default_library",

vendor/github.com/hashicorp/hcl/json/scanner/BUILD

@@ -3,6 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["scanner.go"],
+    importpath = "github.com/hashicorp/hcl/json/scanner",
     visibility = ["//visibility:public"],
     deps = ["//vendor/github.com/hashicorp/hcl/json/token:go_default_library"],
 )

vendor/github.com/hashicorp/hcl/json/token/BUILD

@@ -6,6 +6,7 @@ go_library(
         "position.go",
         "token.go",
     ],
+    importpath = "github.com/hashicorp/hcl/json/token",
     visibility = ["//visibility:public"],
     deps = ["//vendor/github.com/hashicorp/hcl/hcl/token:go_default_library"],
 )