[fast-reboot test]: Some improvements and fixes#293

Merged

pavel-shirshov merged 1 commit intosonic-net:masterfrom

pavel-shirshov:pavelsh/fast_reboot_add_info

Oct 4, 2017

Commits on Oct 3, 2017

Fix a bug with bgp_v6 debug info. Increase waiting time for bgp convergence. Decrease severity of some messages
pavel-shirshov
committed