/info: Add keys Architecture, OSType

- introduces Swarm-relevant keys, see #13634
  - docs updated

Signed-off-by: Olle Jonsson <olle.jonsson@gmail.com>
Upstream-commit: 4e8fcd40028ed09b139b6f86954e676a1839be9c
Component: engine

components/engine/integration-cli/docker_api_info_test.go

@@ -23,6 +23,8 @@ func (s *DockerSuite) TestInfoApi(c *check.C) {
 		"LoggingDriver",
 		"OperatingSystem",
 		"NCPU",
+		"OSType",
+		"Architecture",
 		"MemTotal",
 		"KernelVersion",
 		"Driver",

components/engine/integration-cli/docker_cli_info_test.go

@@ -19,6 +19,8 @@ func (s *DockerSuite) TestInfoEnsureSucceeds(c *check.C) {
 		"Containers:",
 		"Images:",
 		"Execution Driver:",
+		"OSType:",
+		"Architecture:",
 		"Logging Driver:",
 		"Operating System:",
 		"CPUs:",