[accton] Add sensors.conf to multiple models

[seanwu-ec]

Why I did it

Improve readability of show environment output.

How I did it

In all sensors.conf, give the customized labels according to HW specifications for each model.

How to verify it

Installed the built sonic bin and check the prompt of $ show environment or $ sensors, see if every label works nicely.
e.g., on model accton/as5812-54t

admin@sonic:~$ sensors
lm75-i2c-16-49
Adapter: i2c-1-mux (chan_id 6)
Main Board Temperature:  +31.0 C  (high = +80.0 C, hyst = +75.0 C)

lm75-i2c-17-4a
Adapter: i2c-1-mux (chan_id 7)
Main Board Temperature:  +31.5 C  (high = +80.0 C, hyst = +75.0 C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +30.0 C  (high = +98.0 C, crit = +98.0 C)
Core 1:       +30.0 C  (high = +98.0 C, crit = +98.0 C)
Core 2:       +32.0 C  (high = +98.0 C, crit = +98.0 C)
Core 3:       +31.0 C  (high = +98.0 C, crit = +98.0 C)

ym2401-i2c-11-58
Adapter: i2c-1-mux (chan_id 1)
PSU 1 Voltage:      +0.00 V
PSU 1 Fan:            0 RPM
PSU 1 Temperature:   +0.0 C
PSU 1 Power:         0.00 W
PSU 1 Current:      +0.00 A

ym2401-i2c-12-5b
Adapter: i2c-1-mux (chan_id 2)
PSU 2 Voltage:     +11.97 V
PSU 2 Fan:         12800 RPM
PSU 2 Temperature:  +28.0 C
PSU 2 Power:        71.00 W
PSU 2 Current:      +5.95 A

cpr_4011_4mxx-i2c-11-3c
Adapter: i2c-1-mux (chan_id 1)
PSU 1 Voltage In:   +0.00 V
PSU 1 Voltage Out:  +0.00 V
PSU 1 Fan:            0 RPM
PSU 1 Temperature:   +0.0 C
PSU 1 Power In:      0.00 W
PSU 1 Power Out:     0.00 W
PSU 1 Current In:   +0.00 A
PSU 1 Current Out:  +0.00 A

cpr_4011_4mxx-i2c-12-3f
Adapter: i2c-1-mux (chan_id 2)
PSU 2 Voltage In:   +0.00 V
PSU 2 Voltage Out:  +0.00 V
PSU 2 Fan:            0 RPM
PSU 2 Temperature:   +0.0 C
PSU 2 Power In:      0.00 W
PSU 2 Power Out:     0.00 W
PSU 2 Current In:   +0.00 A
PSU 2 Current Out:  +0.00 A

lm75-i2c-15-48
Adapter: i2c-1-mux (chan_id 5)
Main Board Temperature:  +29.5 C  (high = +80.0 C, hyst = +75.0 C)

as5812_54t_fan-isa-0000
Adapter: ISA adapter
Fan 1 Front:    FAULT
Fan 2 Front:    FAULT
Fan 3 Front:    FAULT
Fan 4 Front:    FAULT
Fan 5 Front:    FAULT
Fan 1 Rear:     FAULT
Fan 2 Rear:     FAULT
Fan 3 Rear:     FAULT
Fan 4 Rear:     FAULT
Fan 5 Rear:     FAULT

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012

Description for the changelog

Add sensors.conf to multiple Accton models.

A picture of a cute animal (not mandatory but encouraged)

[ghost]

All CLA requirements met.

[jleveque]

/azp run

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