CLOUDSTACK-4646: Increase the wait time for the routers to go into stopped state

Signed-off-by: venkataswamybabu budumuru <venkataswamybabu.budumuru@citrix.com>
(cherry picked from commit 55ef4b8c3c6d583c7e4de4b11613db718c590b82)
CLOUDSTACK: 4706 - Adding missing method get_region in common.py

Signed-off-by: venkataswamybabu budumuru <venkataswamybabu.budumuru@citrix.com>