[reboot cause] Move reboot-cause files to /host directory so they persist across SONiC upgrades#2490

Merged

lguohan merged 2 commits intosonic-net:masterfrom

jleveque:fix_reboot_cause

Jan 29, 2019

Commits on Jan 25, 2019

[reboot cause] Move reboot-cause files to /host directory so they persist across SONiC upgrades
jleveque
committed

Commits on Jan 28, 2019

[sonic-utilities] Update submodule to include related changes
jleveque
committed