Introduce ignoreFailIfHostOff config setting

Some sensors only provide valid readings when the host is powered on.
This change introduces the `ignoreFailIfHostOff` configuration option to
differenti

Introduce ignoreFailIfHostOff config setting

Some sensors only provide valid readings when the host is powered on.
This change introduces the `ignoreFailIfHostOff` configuration option to
differentiate between unavailable readings based on host state.

- Host OFF: Sensor unavailable is acceptable and will not be treated as
a failure.
- Host ON (running): Sensor unavailable is unexpected, and the failsafe
mode will be triggered.

This ensures that sensors dependent on host power state are handled
correctly without causing unnecessary failsafe triggers during host-off.

Tested on Catalina: failsafe mode is not triggered when the host is off.
- config.json example: add `ignoreFailIfHostOff` for sensors only
available when the host is on.
```
{
"sensors": [
......
{
"name": "HDDBOARD_SSD0_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/HDDBOARD_SSD0_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "HDDBOARD_SSD2_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/HDDBOARD_SSD2_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "PDB_P48V_HSC1_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/PDB_P48V_HSC1_TEMP_C",
"timeout": 0,
"ignoreDbusMinMax": true
},
{
"name": "PDB_VR_P12V_N1_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/PDB_VR_P12V_N1_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "PDB_VR_P12V_N2_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/PDB_VR_P12V_N2_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "IOB0_NIC0_OSFP_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/IOB0_NIC0_OSFP_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "IOB0_NIC1_OSFP_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/IOB0_NIC1_OSFP_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "IOB1_NIC0_OSFP_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/IOB1_NIC0_OSFP_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
{
"name": "IOB1_NIC1_OSFP_TEMP_C",
"type": "temp",
"readPath": "/xyz/openbmc_project/sensors/temperature/IOB1_NIC1_OSFP_TEMP_C",
"timeout": 0,
"ignoreFailIfHostOff": true,
"ignoreDbusMinMax": true
},
......
],

"zones": [
......
]
}
```

Change-Id: I5355c453ca3c6d918c197dcd2cc9119e471d615d
Signed-off-by: Potin Lai <potin.lai@quantatw.com>

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