update gcp google.golang.org/api/compute/v1/

builder/googlecompute/config.go

@@ -42,6 +42,7 @@ type Config struct {
 	Labels                       map[string]string `mapstructure:"labels"`
 	MachineType                  string            `mapstructure:"machine_type"`
 	Metadata                     map[string]string `mapstructure:"metadata"`
+	MinCpuPlatform               string            `mapstructure:"min_cpu_platform"`
 	Network                      string            `mapstructure:"network"`
 	NetworkProjectId             string            `mapstructure:"network_project_id"`
 	OmitExternalIP               bool              `mapstructure:"omit_external_ip"`

vendor/vendor.json

@@ -1648,10 +1648,10 @@
 			"revisionTime": "2017-07-04T19:41:35Z"
 		},
 		{
-			"checksumSHA1": "NbZXrCwb2NvwV+g6yF0NXSG63A0=",
+			"checksumSHA1": "oK9IOgVH0CByZ8YSAswfZT7StuE=",
 			"path": "google.golang.org/api/compute/v1",
-			"revision": "e381d638237fe32daa8eaa3321cf8db7b8203965",
-			"revisionTime": "2017-07-07T17:19:04Z"
+			"revision": "e21acd801f91da814261b938941d193bb036441a",
+			"revisionTime": "2018-08-18T00:05:03Z"
 		},
 		{
 			"checksumSHA1": "EooPqEpEyY/7NCRwHDMWhhlkQNw=",