Description

Sensors test is failing after merging a bad PR:
#2255
The change causing the test to fail as a result of sysfs paths are "is not exist" even if they are.

Steps to reproduce the issue:

1. Run sensors test.
2. Observer "is not exist" failures.

Describe the results you received:

For example 'PMB-1' values:

E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail Curr (out)/curr2_crit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail Curr (out)/curr2_lcrit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail Curr (out)/curr2_max_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 PSU 12V Rail (in)/in1_crit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 PSU 12V Rail (in)/in1_lcrit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 PSU 12V Rail (in)/in1_max_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 PSU 12V Rail (in)/in1_min_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail (out)/in2_crit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail (out)/in2_lcrit_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail (out)/in2_max_alarm is not exist",
E "Path pmbus-i2c-5-41/PMB-1 0.9V VCORE Rail (out)/in2_min_alarm is not exist",

Describe the results you expected:
Test should pass.

Additional information you deem important:

**Output of `show version`:**

```
(paste your output here)
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```