[device/celestica]: Fix xcvrd error#3979

Merged

lguohan merged 3 commits intosonic-net:masterfrom

mudsut4ke:master-add-pmon-daemon-control

Jan 10, 2020

Commits on Jan 6, 2020

[device/celestica]: add pmon_daemon_control config
Wirut Getbamrung
committed

Commits on Jan 9, 2020

[device/celestica]: update sfp index follow port_config
Wirut Getbamrung
committed
[device/celestica]: update get_watchdog to avoid multiple daemon try opening watchdog
Wirut Getbamrung
committed