Update autogen speech client. (#1958)
Update autogen speech client. (#1958)

This update includes the fixes of initial values in the sample
code, see #1926
googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,GoogleCloudPlatform/gcloud-node,googleapis/google-cloud-node,jcking/google-cloud-node,googleapis/google-cloud-node,jcking/google-cloud-node,jcking/google-cloud-node,ofrobots/google-cloud-node,jgeewax/gcloud-node,ofrobots/google-cloud-node,GoogleCloudPlatform/gcloud-node,jgeewax/gcloud-node,callmehiphop/gcloud-node,ofrobots/google-cloud-node,callmehiphop/gcloud-node,googleapis/google-cloud-node