fix 1182: change general timeout to connect timeout

enlarge timeout from 10 to 15. Sometimes NBI takes many time to respond,
low general timeout is not a good aproach, but connection timeout

Change-Id: I17c67c94cccba83baf6ea56a9225e0674a223c11
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>