Fix wrong overridden value of config option client_socket_timeout
Fix wrong overridden value of config option client_socket_timeout

Config option only allows the value zero which implies wait forever,
or positive integer, so we need pass positive integer. CONF.set_default
will check the value by converting it to integer, 0.1 will be converted
to 0. that leads test failure, use 1 instead.

Related-Bug: #1517839
Change-Id: I86eeff90e464faa80277823a87ab352761dd8544

rajalokan/glance,openstack/glance,rajalokan/glance,openstack/glance,openstack/glance