Bump read timeout to 120 seconds and set idempotent to true
Bump read timeout to 120 seconds and set idempotent to true

[#100786866](https://www.pivotaltracker.com/story/show/100786866)

Signed-off-by: Wagner Camarao <9e4bfaf3f26123bf9b57fb85d8a79f98fea9b2ca@vmware.com>

loewenstein/bosh-openstack-cpi-release,cloudfoundry-incubator/bosh-openstack-cpi-release,cloudfoundry-incubator/bosh-openstack-cpi-release,cloudfoundry-incubator/bosh-openstack-cpi-release,voelzmo/bosh-openstack-cpi-release,voelzmo/bosh-openstack-cpi-release,loewenstein/bosh-openstack-cpi-release,loewenstein/bosh-openstack-cpi-release,voelzmo/bosh-openstack-cpi-release